/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.11.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:13:43,768 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:13:43,826 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 08:13:43,831 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:13:43,832 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:13:43,856 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:13:43,857 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:13:43,858 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:13:43,858 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:13:43,861 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:13:43,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:13:43,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:13:43,862 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:13:43,863 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:13:43,863 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:13:43,864 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:13:43,864 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:13:43,864 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:13:43,864 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:13:43,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:13:43,865 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:13:43,865 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:13:43,866 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:13:43,866 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:13:43,866 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:13:43,866 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:13:43,866 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:13:43,866 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:13:43,867 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:13:43,867 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:13:43,868 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:13:43,868 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:13:43,868 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:13:43,868 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:13:43,868 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:13:43,868 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:13:43,868 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:13:43,869 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:13:43,869 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:13:43,869 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:13:43,869 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:13:43,869 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:13:43,869 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:13:43,869 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:13:43,870 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:13:43,870 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:13:43,870 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:13:44,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:13:44,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:13:44,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:13:44,092 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:13:44,094 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:13:44,095 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.11.cil-2.c [2023-12-16 08:13:45,174 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:13:45,348 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:13:45,349 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.11.cil-2.c [2023-12-16 08:13:45,360 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/491868a91/5e473770bad84892ac21243caf5b9dc3/FLAG5d36a0c92 [2023-12-16 08:13:45,370 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/491868a91/5e473770bad84892ac21243caf5b9dc3 [2023-12-16 08:13:45,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:13:45,373 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:13:45,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:13:45,374 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:13:45,379 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:13:45,380 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:13:45" (1/1) ... [2023-12-16 08:13:45,381 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e646145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:45, skipping insertion in model container [2023-12-16 08:13:45,381 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:13:45" (1/1) ... [2023-12-16 08:13:45,432 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:13:45,555 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.11.cil-2.c[911,924] [2023-12-16 08:13:45,600 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.11.cil-2.c[8416,8429] [2023-12-16 08:13:45,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:13:45,698 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:13:45,706 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.11.cil-2.c[911,924] [2023-12-16 08:13:45,719 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.11.cil-2.c[8416,8429] [2023-12-16 08:13:45,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:13:45,768 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:13:45,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:45 WrapperNode [2023-12-16 08:13:45,769 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:13:45,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:13:45,771 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:13:45,771 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:13:45,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:45" (1/1) ... [2023-12-16 08:13:45,799 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:45" (1/1) ... [2023-12-16 08:13:45,838 INFO L138 Inliner]: procedures = 78, calls = 94, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 1008 [2023-12-16 08:13:45,838 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:13:45,839 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:13:45,839 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:13:45,839 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:13:45,855 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:45" (1/1) ... [2023-12-16 08:13:45,855 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:45" (1/1) ... [2023-12-16 08:13:45,861 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:45" (1/1) ... [2023-12-16 08:13:45,887 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 08:13:45,887 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:45" (1/1) ... [2023-12-16 08:13:45,887 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:45" (1/1) ... [2023-12-16 08:13:45,899 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:45" (1/1) ... [2023-12-16 08:13:45,908 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:45" (1/1) ... [2023-12-16 08:13:45,912 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:45" (1/1) ... [2023-12-16 08:13:45,914 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:45" (1/1) ... [2023-12-16 08:13:45,919 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:13:45,919 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:13:45,919 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:13:45,919 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:13:45,920 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:45" (1/1) ... [2023-12-16 08:13:45,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:13:45,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:13:45,942 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 08:13:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:13:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 08:13:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 08:13:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-16 08:13:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-16 08:13:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-16 08:13:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-16 08:13:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-16 08:13:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-16 08:13:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-16 08:13:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-16 08:13:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-16 08:13:45,982 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-16 08:13:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-16 08:13:45,982 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-16 08:13:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-16 08:13:45,982 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-16 08:13:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:13:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-16 08:13:45,982 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-16 08:13:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-16 08:13:45,982 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-16 08:13:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-16 08:13:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-16 08:13:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-16 08:13:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-16 08:13:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-16 08:13:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-16 08:13:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:13:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:13:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-16 08:13:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-16 08:13:45,977 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 08:13:46,117 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:13:46,120 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:13:46,820 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1bv32 == ~q_free~0); [2023-12-16 08:13:46,820 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 08:13:46,902 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:13:46,967 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:13:46,968 INFO L309 CfgBuilder]: Removed 18 assume(true) statements. [2023-12-16 08:13:46,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:13:46 BoogieIcfgContainer [2023-12-16 08:13:46,968 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:13:46,970 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:13:46,970 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:13:46,973 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:13:46,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:13:45" (1/3) ... [2023-12-16 08:13:46,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7850f15c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:13:46, skipping insertion in model container [2023-12-16 08:13:46,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:45" (2/3) ... [2023-12-16 08:13:46,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7850f15c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:13:46, skipping insertion in model container [2023-12-16 08:13:46,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:13:46" (3/3) ... [2023-12-16 08:13:46,975 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.11.cil-2.c [2023-12-16 08:13:46,987 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:13:46,987 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 08:13:47,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:13:47,037 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;@d932e37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:13:47,037 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 08:13:47,043 INFO L276 IsEmpty]: Start isEmpty. Operand has 429 states, 371 states have (on average 1.7115902964959568) internal successors, (635), 377 states have internal predecessors, (635), 41 states have call successors, (41), 14 states have call predecessors, (41), 14 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2023-12-16 08:13:47,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 08:13:47,053 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:47,053 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 08:13:47,054 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:47,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:47,058 INFO L85 PathProgramCache]: Analyzing trace with hash -704538801, now seen corresponding path program 1 times [2023-12-16 08:13:47,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:47,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2199548] [2023-12-16 08:13:47,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:47,067 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 08:13:47,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:47,070 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 08:13:47,071 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 08:13:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:47,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 08:13:47,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:47,299 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 08:13:47,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:47,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:47,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2199548] [2023-12-16 08:13:47,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2199548] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:47,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:47,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 08:13:47,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665538670] [2023-12-16 08:13:47,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:47,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:47,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:47,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:47,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:47,341 INFO L87 Difference]: Start difference. First operand has 429 states, 371 states have (on average 1.7115902964959568) internal successors, (635), 377 states have internal predecessors, (635), 41 states have call successors, (41), 14 states have call predecessors, (41), 14 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) 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 08:13:48,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:48,334 INFO L93 Difference]: Finished difference Result 942 states and 1567 transitions. [2023-12-16 08:13:48,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:13:48,337 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 08:13:48,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:48,347 INFO L225 Difference]: With dead ends: 942 [2023-12-16 08:13:48,348 INFO L226 Difference]: Without dead ends: 532 [2023-12-16 08:13:48,352 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 08:13:48,354 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 467 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:48,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 1256 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 08:13:48,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-12-16 08:13:48,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 525. [2023-12-16 08:13:48,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 447 states have (on average 1.5838926174496644) internal successors, (708), 453 states have internal predecessors, (708), 54 states have call successors, (54), 21 states have call predecessors, (54), 22 states have return successors, (57), 53 states have call predecessors, (57), 52 states have call successors, (57) [2023-12-16 08:13:48,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 819 transitions. [2023-12-16 08:13:48,429 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 819 transitions. Word has length 57 [2023-12-16 08:13:48,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:48,429 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 819 transitions. [2023-12-16 08:13:48,429 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 08:13:48,429 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 819 transitions. [2023-12-16 08:13:48,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 08:13:48,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:48,432 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 08:13:48,451 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 08:13:48,635 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 08:13:48,635 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:48,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:48,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1646435727, now seen corresponding path program 1 times [2023-12-16 08:13:48,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:48,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2049381258] [2023-12-16 08:13:48,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:48,637 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 08:13:48,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:48,638 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 08:13:48,657 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 08:13:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:48,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:13:48,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:48,763 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 08:13:48,764 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:48,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:48,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2049381258] [2023-12-16 08:13:48,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2049381258] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:48,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:48,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 08:13:48,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304387681] [2023-12-16 08:13:48,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:48,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:48,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:48,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:48,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:48,767 INFO L87 Difference]: Start difference. First operand 525 states and 819 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 08:13:49,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:49,588 INFO L93 Difference]: Finished difference Result 936 states and 1434 transitions. [2023-12-16 08:13:49,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:13:49,589 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 08:13:49,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:49,593 INFO L225 Difference]: With dead ends: 936 [2023-12-16 08:13:49,593 INFO L226 Difference]: Without dead ends: 746 [2023-12-16 08:13:49,594 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 08:13:49,594 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 456 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:49,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 1252 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:13:49,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2023-12-16 08:13:49,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 738. [2023-12-16 08:13:49,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 612 states have (on average 1.542483660130719) internal successors, (944), 626 states have internal predecessors, (944), 80 states have call successors, (80), 35 states have call predecessors, (80), 44 states have return successors, (103), 81 states have call predecessors, (103), 78 states have call successors, (103) [2023-12-16 08:13:49,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 1127 transitions. [2023-12-16 08:13:49,631 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 1127 transitions. Word has length 57 [2023-12-16 08:13:49,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:49,631 INFO L495 AbstractCegarLoop]: Abstraction has 738 states and 1127 transitions. [2023-12-16 08:13:49,631 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 08:13:49,632 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 1127 transitions. [2023-12-16 08:13:49,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 08:13:49,633 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:49,634 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 08:13:49,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 08:13:49,837 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 08:13:49,837 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:49,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:49,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1722273615, now seen corresponding path program 1 times [2023-12-16 08:13:49,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:49,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954720873] [2023-12-16 08:13:49,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:49,838 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 08:13:49,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:49,853 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 08:13:49,854 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 08:13:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:49,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:49,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:50,005 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 08:13:50,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:50,006 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:50,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954720873] [2023-12-16 08:13:50,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954720873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:50,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:50,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:50,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376614043] [2023-12-16 08:13:50,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:50,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:50,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:50,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:50,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:50,007 INFO L87 Difference]: Start difference. First operand 738 states and 1127 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 08:13:50,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:50,105 INFO L93 Difference]: Finished difference Result 1484 states and 2194 transitions. [2023-12-16 08:13:50,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:50,105 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 08:13:50,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:50,110 INFO L225 Difference]: With dead ends: 1484 [2023-12-16 08:13:50,110 INFO L226 Difference]: Without dead ends: 1095 [2023-12-16 08:13:50,111 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 08:13:50,112 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 637 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:50,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 757 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:50,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2023-12-16 08:13:50,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1087. [2023-12-16 08:13:50,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 883 states have (on average 1.4994337485843714) internal successors, (1324), 907 states have internal predecessors, (1324), 120 states have call successors, (120), 63 states have call predecessors, (120), 82 states have return successors, (160), 121 states have call predecessors, (160), 118 states have call successors, (160) [2023-12-16 08:13:50,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1604 transitions. [2023-12-16 08:13:50,196 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1604 transitions. Word has length 57 [2023-12-16 08:13:50,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:50,196 INFO L495 AbstractCegarLoop]: Abstraction has 1087 states and 1604 transitions. [2023-12-16 08:13:50,196 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 08:13:50,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1604 transitions. [2023-12-16 08:13:50,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:13:50,198 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:50,198 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 08:13:50,211 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 08:13:50,402 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 08:13:50,403 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:50,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:50,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1827391840, now seen corresponding path program 1 times [2023-12-16 08:13:50,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:50,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104904926] [2023-12-16 08:13:50,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:50,406 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 08:13:50,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:50,407 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 08:13:50,463 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 08:13:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:50,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:13:50,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:50,556 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 08:13:50,556 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:50,556 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:50,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104904926] [2023-12-16 08:13:50,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104904926] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:50,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:50,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:13:50,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761047640] [2023-12-16 08:13:50,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:50,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:13:50,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:50,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:13:50,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:13:50,560 INFO L87 Difference]: Start difference. First operand 1087 states and 1604 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 08:13:50,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:50,745 INFO L93 Difference]: Finished difference Result 1861 states and 2708 transitions. [2023-12-16 08:13:50,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:13:50,745 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 08:13:50,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:50,750 INFO L225 Difference]: With dead ends: 1861 [2023-12-16 08:13:50,750 INFO L226 Difference]: Without dead ends: 1123 [2023-12-16 08:13:50,752 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 08:13:50,753 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 6 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:50,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3089 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:50,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2023-12-16 08:13:50,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1103. [2023-12-16 08:13:50,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 895 states have (on average 1.488268156424581) internal successors, (1332), 919 states have internal predecessors, (1332), 120 states have call successors, (120), 63 states have call predecessors, (120), 86 states have return successors, (164), 125 states have call predecessors, (164), 118 states have call successors, (164) [2023-12-16 08:13:50,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1616 transitions. [2023-12-16 08:13:50,804 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1616 transitions. Word has length 58 [2023-12-16 08:13:50,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:50,804 INFO L495 AbstractCegarLoop]: Abstraction has 1103 states and 1616 transitions. [2023-12-16 08:13:50,805 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 08:13:50,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1616 transitions. [2023-12-16 08:13:50,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:13:50,806 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:50,806 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 08:13:50,819 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 08:13:51,010 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 08:13:51,010 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:51,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:51,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1899778398, now seen corresponding path program 1 times [2023-12-16 08:13:51,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:51,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787732508] [2023-12-16 08:13:51,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:51,012 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 08:13:51,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:51,013 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 08:13:51,045 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 08:13:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:51,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:51,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:51,123 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 08:13:51,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:51,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:51,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787732508] [2023-12-16 08:13:51,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787732508] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:51,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:51,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:51,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203988412] [2023-12-16 08:13:51,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:51,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:51,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:51,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:51,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:51,126 INFO L87 Difference]: Start difference. First operand 1103 states and 1616 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 08:13:51,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:51,247 INFO L93 Difference]: Finished difference Result 2555 states and 3632 transitions. [2023-12-16 08:13:51,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:51,247 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 08:13:51,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:51,255 INFO L225 Difference]: With dead ends: 2555 [2023-12-16 08:13:51,255 INFO L226 Difference]: Without dead ends: 1801 [2023-12-16 08:13:51,258 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 08:13:51,258 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 626 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:51,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 733 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:51,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2023-12-16 08:13:51,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1793. [2023-12-16 08:13:51,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1793 states, 1425 states have (on average 1.4357894736842105) internal successors, (2046), 1469 states have internal predecessors, (2046), 200 states have call successors, (200), 119 states have call predecessors, (200), 166 states have return successors, (282), 209 states have call predecessors, (282), 198 states have call successors, (282) [2023-12-16 08:13:51,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1793 states to 1793 states and 2528 transitions. [2023-12-16 08:13:51,372 INFO L78 Accepts]: Start accepts. Automaton has 1793 states and 2528 transitions. Word has length 58 [2023-12-16 08:13:51,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:51,373 INFO L495 AbstractCegarLoop]: Abstraction has 1793 states and 2528 transitions. [2023-12-16 08:13:51,373 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 08:13:51,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1793 states and 2528 transitions. [2023-12-16 08:13:51,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-16 08:13:51,375 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:51,375 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 08:13:51,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-16 08:13:51,578 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 08:13:51,579 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:51,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:51,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1833018977, now seen corresponding path program 1 times [2023-12-16 08:13:51,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:51,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580872930] [2023-12-16 08:13:51,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:51,580 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 08:13:51,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:51,581 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 08:13:51,582 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 08:13:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:51,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:13:51,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:51,720 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 08:13:51,720 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:51,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:51,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580872930] [2023-12-16 08:13:51,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [580872930] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:51,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:51,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:13:51,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143115678] [2023-12-16 08:13:51,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:51,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:13:51,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:51,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:13:51,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:13:51,733 INFO L87 Difference]: Start difference. First operand 1793 states and 2528 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 08:13:52,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:52,027 INFO L93 Difference]: Finished difference Result 3285 states and 4584 transitions. [2023-12-16 08:13:52,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:13:52,028 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 08:13:52,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:52,034 INFO L225 Difference]: With dead ends: 3285 [2023-12-16 08:13:52,034 INFO L226 Difference]: Without dead ends: 1841 [2023-12-16 08:13:52,037 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 08:13:52,037 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 3 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:52,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3089 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 08:13:52,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2023-12-16 08:13:52,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1825. [2023-12-16 08:13:52,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1825 states, 1449 states have (on average 1.4230503795721188) internal successors, (2062), 1493 states have internal predecessors, (2062), 200 states have call successors, (200), 119 states have call predecessors, (200), 174 states have return successors, (290), 217 states have call predecessors, (290), 198 states have call successors, (290) [2023-12-16 08:13:52,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 2552 transitions. [2023-12-16 08:13:52,103 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 2552 transitions. Word has length 73 [2023-12-16 08:13:52,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:52,104 INFO L495 AbstractCegarLoop]: Abstraction has 1825 states and 2552 transitions. [2023-12-16 08:13:52,104 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 08:13:52,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 2552 transitions. [2023-12-16 08:13:52,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-16 08:13:52,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:52,105 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 08:13:52,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 08:13:52,309 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 08:13:52,309 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:52,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:52,310 INFO L85 PathProgramCache]: Analyzing trace with hash -12348189, now seen corresponding path program 1 times [2023-12-16 08:13:52,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:52,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008967126] [2023-12-16 08:13:52,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:52,311 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 08:13:52,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:52,312 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 08:13:52,313 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 08:13:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:52,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:52,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:52,486 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 08:13:52,486 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:52,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:52,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008967126] [2023-12-16 08:13:52,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008967126] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:52,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:52,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:52,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836074279] [2023-12-16 08:13:52,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:52,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:13:52,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:52,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:13:52,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:13:52,488 INFO L87 Difference]: Start difference. First operand 1825 states and 2552 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 08:13:53,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:53,153 INFO L93 Difference]: Finished difference Result 4741 states and 6535 transitions. [2023-12-16 08:13:53,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:13:53,154 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 08:13:53,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:53,166 INFO L225 Difference]: With dead ends: 4741 [2023-12-16 08:13:53,167 INFO L226 Difference]: Without dead ends: 3269 [2023-12-16 08:13:53,171 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 08:13:53,171 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 922 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:53,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [952 Valid, 653 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:13:53,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3269 states. [2023-12-16 08:13:53,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3269 to 3265. [2023-12-16 08:13:53,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3265 states, 2533 states have (on average 1.3730754046585076) internal successors, (3478), 2625 states have internal predecessors, (3478), 380 states have call successors, (380), 231 states have call predecessors, (380), 350 states have return successors, (627), 417 states have call predecessors, (627), 378 states have call successors, (627) [2023-12-16 08:13:53,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3265 states to 3265 states and 4485 transitions. [2023-12-16 08:13:53,313 INFO L78 Accepts]: Start accepts. Automaton has 3265 states and 4485 transitions. Word has length 73 [2023-12-16 08:13:53,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:53,313 INFO L495 AbstractCegarLoop]: Abstraction has 3265 states and 4485 transitions. [2023-12-16 08:13:53,314 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 08:13:53,314 INFO L276 IsEmpty]: Start isEmpty. Operand 3265 states and 4485 transitions. [2023-12-16 08:13:53,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-16 08:13:53,317 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:53,317 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 08:13:53,320 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 08:13:53,520 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 08:13:53,521 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:53,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:53,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1944919095, now seen corresponding path program 1 times [2023-12-16 08:13:53,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:53,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068229698] [2023-12-16 08:13:53,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:53,522 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 08:13:53,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:53,523 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 08:13:53,558 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 08:13:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:53,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:53,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:53,619 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 08:13:53,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:53,619 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:53,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068229698] [2023-12-16 08:13:53,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068229698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:53,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:53,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:53,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704758966] [2023-12-16 08:13:53,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:53,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:53,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:53,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:53,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:53,621 INFO L87 Difference]: Start difference. First operand 3265 states and 4485 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 08:13:53,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:53,884 INFO L93 Difference]: Finished difference Result 8933 states and 12114 transitions. [2023-12-16 08:13:53,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:53,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2023-12-16 08:13:53,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:53,904 INFO L225 Difference]: With dead ends: 8933 [2023-12-16 08:13:53,904 INFO L226 Difference]: Without dead ends: 4689 [2023-12-16 08:13:53,915 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 08:13:53,916 INFO L413 NwaCegarLoop]: 723 mSDtfsCounter, 110 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:53,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1337 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:53,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4689 states. [2023-12-16 08:13:54,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4689 to 4689. [2023-12-16 08:13:54,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4689 states, 3613 states have (on average 1.3534458898422363) internal successors, (4890), 3745 states have internal predecessors, (4890), 544 states have call successors, (544), 343 states have call predecessors, (544), 530 states have return successors, (959), 609 states have call predecessors, (959), 542 states have call successors, (959) [2023-12-16 08:13:54,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4689 states to 4689 states and 6393 transitions. [2023-12-16 08:13:54,159 INFO L78 Accepts]: Start accepts. Automaton has 4689 states and 6393 transitions. Word has length 75 [2023-12-16 08:13:54,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:54,159 INFO L495 AbstractCegarLoop]: Abstraction has 4689 states and 6393 transitions. [2023-12-16 08:13:54,160 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 08:13:54,160 INFO L276 IsEmpty]: Start isEmpty. Operand 4689 states and 6393 transitions. [2023-12-16 08:13:54,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-16 08:13:54,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:54,170 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 08:13:54,176 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 (9)] Forceful destruction successful, exit code 0 [2023-12-16 08:13:54,374 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 08:13:54,375 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:54,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:54,375 INFO L85 PathProgramCache]: Analyzing trace with hash -91421461, now seen corresponding path program 1 times [2023-12-16 08:13:54,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:54,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011748491] [2023-12-16 08:13:54,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:54,376 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 08:13:54,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:54,378 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 08:13:54,380 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 08:13:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:54,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:13:54,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:54,498 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 08:13:54,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:54,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:54,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011748491] [2023-12-16 08:13:54,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011748491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:54,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:54,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:13:54,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49237683] [2023-12-16 08:13:54,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:54,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:13:54,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:54,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:13:54,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:13:54,500 INFO L87 Difference]: Start difference. First operand 4689 states and 6393 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 08:13:54,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:54,765 INFO L93 Difference]: Finished difference Result 9045 states and 12347 transitions. [2023-12-16 08:13:54,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:13:54,765 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 08:13:54,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:54,784 INFO L225 Difference]: With dead ends: 9045 [2023-12-16 08:13:54,784 INFO L226 Difference]: Without dead ends: 4729 [2023-12-16 08:13:54,795 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 08:13:54,795 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 32 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 3096 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:54,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 3096 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:54,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4729 states. [2023-12-16 08:13:54,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4729 to 4243. [2023-12-16 08:13:54,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4243 states, 3335 states have (on average 1.3427286356821588) internal successors, (4478), 3406 states have internal predecessors, (4478), 448 states have call successors, (448), 292 states have call predecessors, (448), 458 states have return successors, (816), 553 states have call predecessors, (816), 446 states have call successors, (816) [2023-12-16 08:13:54,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4243 states to 4243 states and 5742 transitions. [2023-12-16 08:13:54,998 INFO L78 Accepts]: Start accepts. Automaton has 4243 states and 5742 transitions. Word has length 138 [2023-12-16 08:13:54,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:54,998 INFO L495 AbstractCegarLoop]: Abstraction has 4243 states and 5742 transitions. [2023-12-16 08:13:54,998 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 08:13:54,998 INFO L276 IsEmpty]: Start isEmpty. Operand 4243 states and 5742 transitions. [2023-12-16 08:13:55,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 08:13:55,008 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:55,008 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 08:13:55,033 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 08:13:55,213 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 08:13:55,213 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:55,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:55,214 INFO L85 PathProgramCache]: Analyzing trace with hash -212720015, now seen corresponding path program 1 times [2023-12-16 08:13:55,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:55,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430657166] [2023-12-16 08:13:55,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:55,214 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 08:13:55,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:55,215 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 08:13:55,246 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 08:13:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:55,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:55,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:55,324 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 08:13:55,324 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:55,324 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:55,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430657166] [2023-12-16 08:13:55,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1430657166] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:55,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:55,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:55,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828553083] [2023-12-16 08:13:55,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:55,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:55,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:55,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:55,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:55,326 INFO L87 Difference]: Start difference. First operand 4243 states and 5742 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 08:13:55,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:55,466 INFO L93 Difference]: Finished difference Result 6550 states and 8805 transitions. [2023-12-16 08:13:55,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:55,467 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 08:13:55,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:55,476 INFO L225 Difference]: With dead ends: 6550 [2023-12-16 08:13:55,477 INFO L226 Difference]: Without dead ends: 2720 [2023-12-16 08:13:55,483 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 08:13:55,484 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 138 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:55,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1103 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:55,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2720 states. [2023-12-16 08:13:55,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2720 to 2720. [2023-12-16 08:13:55,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2720 states, 2154 states have (on average 1.3593314763231197) internal successors, (2928), 2199 states have internal predecessors, (2928), 272 states have call successors, (272), 180 states have call predecessors, (272), 292 states have return successors, (496), 341 states have call predecessors, (496), 270 states have call successors, (496) [2023-12-16 08:13:55,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2720 states to 2720 states and 3696 transitions. [2023-12-16 08:13:55,658 INFO L78 Accepts]: Start accepts. Automaton has 2720 states and 3696 transitions. Word has length 139 [2023-12-16 08:13:55,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:55,659 INFO L495 AbstractCegarLoop]: Abstraction has 2720 states and 3696 transitions. [2023-12-16 08:13:55,659 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 08:13:55,659 INFO L276 IsEmpty]: Start isEmpty. Operand 2720 states and 3696 transitions. [2023-12-16 08:13:55,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 08:13:55,665 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:55,665 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 08:13:55,685 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 08:13:55,886 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 08:13:55,887 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:55,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:55,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1679296540, now seen corresponding path program 1 times [2023-12-16 08:13:55,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:55,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146092692] [2023-12-16 08:13:55,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:55,888 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 08:13:55,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:55,905 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 08:13:55,915 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 08:13:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:56,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:56,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:56,113 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 08:13:56,114 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:56,114 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:56,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146092692] [2023-12-16 08:13:56,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146092692] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:56,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:56,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:56,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547174380] [2023-12-16 08:13:56,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:56,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:56,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:56,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:56,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:56,115 INFO L87 Difference]: Start difference. First operand 2720 states and 3696 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 08:13:56,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:56,295 INFO L93 Difference]: Finished difference Result 6420 states and 8757 transitions. [2023-12-16 08:13:56,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:56,295 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 08:13:56,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:56,311 INFO L225 Difference]: With dead ends: 6420 [2023-12-16 08:13:56,311 INFO L226 Difference]: Without dead ends: 4313 [2023-12-16 08:13:56,316 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 08:13:56,317 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 64 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:56,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 1233 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:56,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4313 states. [2023-12-16 08:13:56,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4313 to 4285. [2023-12-16 08:13:56,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4285 states, 3381 states have (on average 1.3504880212954746) internal successors, (4566), 3462 states have internal predecessors, (4566), 428 states have call successors, (428), 288 states have call predecessors, (428), 474 states have return successors, (805), 535 states have call predecessors, (805), 426 states have call successors, (805) [2023-12-16 08:13:56,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4285 states to 4285 states and 5799 transitions. [2023-12-16 08:13:56,522 INFO L78 Accepts]: Start accepts. Automaton has 4285 states and 5799 transitions. Word has length 141 [2023-12-16 08:13:56,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:56,523 INFO L495 AbstractCegarLoop]: Abstraction has 4285 states and 5799 transitions. [2023-12-16 08:13:56,524 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 08:13:56,524 INFO L276 IsEmpty]: Start isEmpty. Operand 4285 states and 5799 transitions. [2023-12-16 08:13:56,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 08:13:56,531 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:56,531 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 08:13:56,535 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 08:13:56,735 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 08:13:56,735 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:56,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:56,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1383704989, now seen corresponding path program 1 times [2023-12-16 08:13:56,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:56,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586608698] [2023-12-16 08:13:56,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:56,736 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 08:13:56,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:56,737 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 08:13:56,738 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 08:13:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:56,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:56,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:56,875 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 08:13:56,875 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:56,875 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:56,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [586608698] [2023-12-16 08:13:56,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [586608698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:56,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:56,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:56,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3066468] [2023-12-16 08:13:56,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:56,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:56,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:56,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:56,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:56,876 INFO L87 Difference]: Start difference. First operand 4285 states and 5799 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 08:13:57,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:57,180 INFO L93 Difference]: Finished difference Result 11201 states and 15540 transitions. [2023-12-16 08:13:57,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:57,180 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 08:13:57,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:57,205 INFO L225 Difference]: With dead ends: 11201 [2023-12-16 08:13:57,205 INFO L226 Difference]: Without dead ends: 7529 [2023-12-16 08:13:57,213 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 08:13:57,213 INFO L413 NwaCegarLoop]: 666 mSDtfsCounter, 94 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:57,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1271 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:57,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7529 states. [2023-12-16 08:13:57,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7529 to 7477. [2023-12-16 08:13:57,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7477 states, 5873 states have (on average 1.321981951302571) internal successors, (7764), 6004 states have internal predecessors, (7764), 764 states have call successors, (764), 522 states have call predecessors, (764), 838 states have return successors, (1603), 951 states have call predecessors, (1603), 762 states have call successors, (1603) [2023-12-16 08:13:57,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7477 states to 7477 states and 10131 transitions. [2023-12-16 08:13:57,513 INFO L78 Accepts]: Start accepts. Automaton has 7477 states and 10131 transitions. Word has length 142 [2023-12-16 08:13:57,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:57,514 INFO L495 AbstractCegarLoop]: Abstraction has 7477 states and 10131 transitions. [2023-12-16 08:13:57,514 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 08:13:57,514 INFO L276 IsEmpty]: Start isEmpty. Operand 7477 states and 10131 transitions. [2023-12-16 08:13:57,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 08:13:57,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:57,524 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 08:13:57,541 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 08:13:57,727 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 08:13:57,728 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:57,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:57,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1789215670, now seen corresponding path program 1 times [2023-12-16 08:13:57,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:57,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812841004] [2023-12-16 08:13:57,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:57,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:57,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:57,730 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 08:13:57,764 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 08:13:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:57,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:57,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:57,935 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 08:13:57,935 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:57,935 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:57,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1812841004] [2023-12-16 08:13:57,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1812841004] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:57,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:57,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:57,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376082996] [2023-12-16 08:13:57,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:57,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:57,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:57,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:57,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:57,937 INFO L87 Difference]: Start difference. First operand 7477 states and 10131 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 08:13:58,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:58,453 INFO L93 Difference]: Finished difference Result 21089 states and 28788 transitions. [2023-12-16 08:13:58,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:58,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 143 [2023-12-16 08:13:58,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:58,533 INFO L225 Difference]: With dead ends: 21089 [2023-12-16 08:13:58,534 INFO L226 Difference]: Without dead ends: 14225 [2023-12-16 08:13:58,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:58,568 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 68 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:58,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1238 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:58,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14225 states. [2023-12-16 08:13:59,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14225 to 14221. [2023-12-16 08:13:59,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14221 states, 11140 states have (on average 1.304129263913824) internal successors, (14528), 11400 states have internal predecessors, (14528), 1472 states have call successors, (1472), 1008 states have call predecessors, (1472), 1607 states have return successors, (3077), 1813 states have call predecessors, (3077), 1470 states have call successors, (3077) [2023-12-16 08:13:59,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14221 states to 14221 states and 19077 transitions. [2023-12-16 08:13:59,515 INFO L78 Accepts]: Start accepts. Automaton has 14221 states and 19077 transitions. Word has length 143 [2023-12-16 08:13:59,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:59,515 INFO L495 AbstractCegarLoop]: Abstraction has 14221 states and 19077 transitions. [2023-12-16 08:13:59,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 08:13:59,516 INFO L276 IsEmpty]: Start isEmpty. Operand 14221 states and 19077 transitions. [2023-12-16 08:13:59,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 08:13:59,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:59,529 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 08:13:59,536 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 08:13:59,734 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 08:13:59,734 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:59,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:59,735 INFO L85 PathProgramCache]: Analyzing trace with hash 733026965, now seen corresponding path program 1 times [2023-12-16 08:13:59,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:59,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308926920] [2023-12-16 08:13:59,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:59,736 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 08:13:59,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:59,777 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 08:13:59,778 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 08:13:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:59,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:59,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:59,899 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-12-16 08:13:59,900 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:59,900 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:59,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308926920] [2023-12-16 08:13:59,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308926920] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:59,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:59,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:59,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182024743] [2023-12-16 08:13:59,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:59,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:59,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:59,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:59,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:59,901 INFO L87 Difference]: Start difference. First operand 14221 states and 19077 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 08:14:01,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:01,581 INFO L93 Difference]: Finished difference Result 40868 states and 54825 transitions. [2023-12-16 08:14:01,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:14:01,582 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 08:14:01,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:01,732 INFO L225 Difference]: With dead ends: 40868 [2023-12-16 08:14:01,732 INFO L226 Difference]: Without dead ends: 26973 [2023-12-16 08:14:01,768 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 08:14:01,768 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 953 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:01,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 908 Invalid, 960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 08:14:01,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26973 states. [2023-12-16 08:14:03,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26973 to 26925. [2023-12-16 08:14:03,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26925 states, 20938 states have (on average 1.2900468048524214) internal successors, (27011), 21421 states have internal predecessors, (27011), 2867 states have call successors, (2867), 1959 states have call predecessors, (2867), 3118 states have return successors, (5871), 3545 states have call predecessors, (5871), 2865 states have call successors, (5871) [2023-12-16 08:14:03,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26925 states to 26925 states and 35749 transitions. [2023-12-16 08:14:03,165 INFO L78 Accepts]: Start accepts. Automaton has 26925 states and 35749 transitions. Word has length 147 [2023-12-16 08:14:03,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:03,165 INFO L495 AbstractCegarLoop]: Abstraction has 26925 states and 35749 transitions. [2023-12-16 08:14:03,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 08:14:03,165 INFO L276 IsEmpty]: Start isEmpty. Operand 26925 states and 35749 transitions. [2023-12-16 08:14:03,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-16 08:14:03,183 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:03,184 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:03,202 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 08:14:03,388 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 08:14:03,388 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:03,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:03,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1506705166, now seen corresponding path program 1 times [2023-12-16 08:14:03,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:03,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989487376] [2023-12-16 08:14:03,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:03,389 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 08:14:03,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:03,406 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 08:14:03,438 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 08:14:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:03,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:14:03,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:03,537 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 08:14:03,538 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:03,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:03,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989487376] [2023-12-16 08:14:03,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989487376] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:03,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:03,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:14:03,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591358478] [2023-12-16 08:14:03,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:03,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:14:03,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:03,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:14:03,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:14:03,539 INFO L87 Difference]: Start difference. First operand 26925 states and 35749 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 08:14:04,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:04,862 INFO L93 Difference]: Finished difference Result 53365 states and 70757 transitions. [2023-12-16 08:14:04,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:14:04,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 164 [2023-12-16 08:14:04,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:04,949 INFO L225 Difference]: With dead ends: 53365 [2023-12-16 08:14:04,949 INFO L226 Difference]: Without dead ends: 26833 [2023-12-16 08:14:04,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:14:04,985 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 103 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:04,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1271 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:14:05,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26833 states. [2023-12-16 08:14:06,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26833 to 26829. [2023-12-16 08:14:06,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26829 states, 20842 states have (on average 1.2706554073505423) internal successors, (26483), 21373 states have internal predecessors, (26483), 2867 states have call successors, (2867), 1959 states have call predecessors, (2867), 3118 states have return successors, (5295), 3497 states have call predecessors, (5295), 2865 states have call successors, (5295) [2023-12-16 08:14:06,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26829 states to 26829 states and 34645 transitions. [2023-12-16 08:14:06,466 INFO L78 Accepts]: Start accepts. Automaton has 26829 states and 34645 transitions. Word has length 164 [2023-12-16 08:14:06,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:06,468 INFO L495 AbstractCegarLoop]: Abstraction has 26829 states and 34645 transitions. [2023-12-16 08:14:06,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 08:14:06,468 INFO L276 IsEmpty]: Start isEmpty. Operand 26829 states and 34645 transitions. [2023-12-16 08:14:06,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 08:14:06,472 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:06,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:06,476 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 08:14:06,675 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 08:14:06,676 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:06,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:06,677 INFO L85 PathProgramCache]: Analyzing trace with hash -339032444, now seen corresponding path program 1 times [2023-12-16 08:14:06,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:06,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [6937641] [2023-12-16 08:14:06,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:06,677 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 08:14:06,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:06,678 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 08:14:06,701 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 08:14:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:06,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:14:06,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:06,848 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 08:14:06,848 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:06,849 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:06,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [6937641] [2023-12-16 08:14:06,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [6937641] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:06,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:06,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:14:06,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48815767] [2023-12-16 08:14:06,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:06,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:14:06,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:06,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:14:06,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:14:06,850 INFO L87 Difference]: Start difference. First operand 26829 states and 34645 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:07,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:07,951 INFO L93 Difference]: Finished difference Result 27142 states and 35152 transitions. [2023-12-16 08:14:07,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:14:07,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2023-12-16 08:14:07,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:08,016 INFO L225 Difference]: With dead ends: 27142 [2023-12-16 08:14:08,016 INFO L226 Difference]: Without dead ends: 26829 [2023-12-16 08:14:08,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:14:08,026 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 513 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:08,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 751 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:14:08,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26829 states. [2023-12-16 08:14:09,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26829 to 26829. [2023-12-16 08:14:09,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26829 states, 20842 states have (on average 1.270607427310239) internal successors, (26482), 21373 states have internal predecessors, (26482), 2867 states have call successors, (2867), 1959 states have call predecessors, (2867), 3118 states have return successors, (5295), 3497 states have call predecessors, (5295), 2865 states have call successors, (5295) [2023-12-16 08:14:09,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26829 states to 26829 states and 34644 transitions. [2023-12-16 08:14:09,386 INFO L78 Accepts]: Start accepts. Automaton has 26829 states and 34644 transitions. Word has length 151 [2023-12-16 08:14:09,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:09,386 INFO L495 AbstractCegarLoop]: Abstraction has 26829 states and 34644 transitions. [2023-12-16 08:14:09,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:09,386 INFO L276 IsEmpty]: Start isEmpty. Operand 26829 states and 34644 transitions. [2023-12-16 08:14:09,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 08:14:09,390 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:09,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:09,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-16 08:14:09,595 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 08:14:09,596 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:09,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:09,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1448837378, now seen corresponding path program 1 times [2023-12-16 08:14:09,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:09,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509411304] [2023-12-16 08:14:09,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:09,597 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 08:14:09,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:09,613 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 08:14:09,614 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 08:14:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:09,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:09,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:09,805 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 08:14:09,805 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:09,805 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:09,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509411304] [2023-12-16 08:14:09,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [509411304] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:09,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:09,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:09,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978038633] [2023-12-16 08:14:09,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:09,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:09,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:09,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:09,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:09,807 INFO L87 Difference]: Start difference. First operand 26829 states and 34644 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:11,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:11,609 INFO L93 Difference]: Finished difference Result 27486 states and 35723 transitions. [2023-12-16 08:14:11,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:14:11,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2023-12-16 08:14:11,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:11,687 INFO L225 Difference]: With dead ends: 27486 [2023-12-16 08:14:11,687 INFO L226 Difference]: Without dead ends: 27180 [2023-12-16 08:14:11,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 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 08:14:11,702 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 1195 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:11,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1226 Valid, 1524 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 08:14:11,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27180 states. [2023-12-16 08:14:12,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27180 to 27153. [2023-12-16 08:14:13,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27153 states, 21139 states have (on average 1.2758881687875492) internal successors, (26971), 21671 states have internal predecessors, (26971), 2887 states have call successors, (2887), 1965 states have call predecessors, (2887), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-16 08:14:13,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27153 states to 27153 states and 35174 transitions. [2023-12-16 08:14:13,071 INFO L78 Accepts]: Start accepts. Automaton has 27153 states and 35174 transitions. Word has length 151 [2023-12-16 08:14:13,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:13,071 INFO L495 AbstractCegarLoop]: Abstraction has 27153 states and 35174 transitions. [2023-12-16 08:14:13,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:13,072 INFO L276 IsEmpty]: Start isEmpty. Operand 27153 states and 35174 transitions. [2023-12-16 08:14:13,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 08:14:13,074 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:13,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:13,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-16 08:14:13,279 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 08:14:13,280 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:13,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:13,280 INFO L85 PathProgramCache]: Analyzing trace with hash 903964804, now seen corresponding path program 1 times [2023-12-16 08:14:13,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:13,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [309843813] [2023-12-16 08:14:13,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:13,281 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 08:14:13,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:13,282 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 08:14:13,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 08:14:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:13,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:13,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:13,463 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 08:14:13,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:13,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:13,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [309843813] [2023-12-16 08:14:13,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [309843813] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:13,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:13,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:13,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949464452] [2023-12-16 08:14:13,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:13,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:13,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:13,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:13,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:13,464 INFO L87 Difference]: Start difference. First operand 27153 states and 35174 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:15,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:15,178 INFO L93 Difference]: Finished difference Result 27783 states and 36205 transitions. [2023-12-16 08:14:15,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:15,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2023-12-16 08:14:15,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:15,256 INFO L225 Difference]: With dead ends: 27783 [2023-12-16 08:14:15,257 INFO L226 Difference]: Without dead ends: 27153 [2023-12-16 08:14:15,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 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 08:14:15,268 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 893 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:15,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 1015 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:14:15,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27153 states. [2023-12-16 08:14:16,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27153 to 27153. [2023-12-16 08:14:16,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27153 states, 21139 states have (on average 1.2755570272955201) internal successors, (26964), 21671 states have internal predecessors, (26964), 2887 states have call successors, (2887), 1965 states have call predecessors, (2887), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-16 08:14:16,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27153 states to 27153 states and 35167 transitions. [2023-12-16 08:14:16,741 INFO L78 Accepts]: Start accepts. Automaton has 27153 states and 35167 transitions. Word has length 151 [2023-12-16 08:14:16,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:16,741 INFO L495 AbstractCegarLoop]: Abstraction has 27153 states and 35167 transitions. [2023-12-16 08:14:16,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:16,741 INFO L276 IsEmpty]: Start isEmpty. Operand 27153 states and 35167 transitions. [2023-12-16 08:14:16,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 08:14:16,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:16,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:14:16,780 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 (19)] Ended with exit code 0 [2023-12-16 08:14:16,963 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 08:14:16,964 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:16,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:16,965 INFO L85 PathProgramCache]: Analyzing trace with hash 207317632, now seen corresponding path program 1 times [2023-12-16 08:14:16,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:16,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1546978237] [2023-12-16 08:14:16,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:16,965 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 08:14:16,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:16,967 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 08:14:16,970 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 08:14:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:17,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:17,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:17,161 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 08:14:17,162 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:17,162 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:17,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1546978237] [2023-12-16 08:14:17,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1546978237] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:17,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:17,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:17,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407912711] [2023-12-16 08:14:17,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:17,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:17,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:17,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:17,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:17,163 INFO L87 Difference]: Start difference. First operand 27153 states and 35167 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:18,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:18,960 INFO L93 Difference]: Finished difference Result 27783 states and 36191 transitions. [2023-12-16 08:14:18,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:18,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2023-12-16 08:14:18,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:19,091 INFO L225 Difference]: With dead ends: 27783 [2023-12-16 08:14:19,091 INFO L226 Difference]: Without dead ends: 27153 [2023-12-16 08:14:19,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 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 08:14:19,102 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 886 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:19,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 1008 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:14:19,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27153 states. [2023-12-16 08:14:20,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27153 to 27153. [2023-12-16 08:14:20,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27153 states, 21139 states have (on average 1.2752258858034913) internal successors, (26957), 21671 states have internal predecessors, (26957), 2887 states have call successors, (2887), 1965 states have call predecessors, (2887), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-16 08:14:20,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27153 states to 27153 states and 35160 transitions. [2023-12-16 08:14:20,776 INFO L78 Accepts]: Start accepts. Automaton has 27153 states and 35160 transitions. Word has length 151 [2023-12-16 08:14:20,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:20,776 INFO L495 AbstractCegarLoop]: Abstraction has 27153 states and 35160 transitions. [2023-12-16 08:14:20,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:20,777 INFO L276 IsEmpty]: Start isEmpty. Operand 27153 states and 35160 transitions. [2023-12-16 08:14:20,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 08:14:20,781 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:20,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:20,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-16 08:14:20,986 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 08:14:20,986 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:20,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:20,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1406813316, now seen corresponding path program 1 times [2023-12-16 08:14:20,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:20,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1281800663] [2023-12-16 08:14:20,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:20,987 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 08:14:20,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:20,988 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 08:14:20,989 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 08:14:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:21,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:21,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:21,189 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 08:14:21,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:21,189 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:21,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1281800663] [2023-12-16 08:14:21,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1281800663] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:21,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:21,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:21,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172095021] [2023-12-16 08:14:21,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:21,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:21,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:21,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:21,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:21,191 INFO L87 Difference]: Start difference. First operand 27153 states and 35160 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:23,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:23,104 INFO L93 Difference]: Finished difference Result 27783 states and 36177 transitions. [2023-12-16 08:14:23,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:23,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2023-12-16 08:14:23,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:23,172 INFO L225 Difference]: With dead ends: 27783 [2023-12-16 08:14:23,173 INFO L226 Difference]: Without dead ends: 27153 [2023-12-16 08:14:23,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 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 08:14:23,186 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 880 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:23,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 1001 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:14:23,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27153 states. [2023-12-16 08:14:24,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27153 to 27153. [2023-12-16 08:14:24,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27153 states, 21139 states have (on average 1.2748947443114622) internal successors, (26950), 21671 states have internal predecessors, (26950), 2887 states have call successors, (2887), 1965 states have call predecessors, (2887), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-16 08:14:24,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27153 states to 27153 states and 35153 transitions. [2023-12-16 08:14:24,828 INFO L78 Accepts]: Start accepts. Automaton has 27153 states and 35153 transitions. Word has length 151 [2023-12-16 08:14:24,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:24,829 INFO L495 AbstractCegarLoop]: Abstraction has 27153 states and 35153 transitions. [2023-12-16 08:14:24,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:24,829 INFO L276 IsEmpty]: Start isEmpty. Operand 27153 states and 35153 transitions. [2023-12-16 08:14:24,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 08:14:24,831 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:24,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:24,840 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 08:14:25,035 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 08:14:25,036 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:25,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:25,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1181787392, now seen corresponding path program 1 times [2023-12-16 08:14:25,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:25,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056361150] [2023-12-16 08:14:25,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:25,037 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 08:14:25,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:25,038 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 08:14:25,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-16 08:14:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:25,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:25,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:25,217 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 08:14:25,217 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:25,217 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:25,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056361150] [2023-12-16 08:14:25,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056361150] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:25,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:25,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:25,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637684619] [2023-12-16 08:14:25,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:25,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:25,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:25,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:25,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:25,219 INFO L87 Difference]: Start difference. First operand 27153 states and 35153 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:27,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:27,293 INFO L93 Difference]: Finished difference Result 27783 states and 36163 transitions. [2023-12-16 08:14:27,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:27,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2023-12-16 08:14:27,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:27,356 INFO L225 Difference]: With dead ends: 27783 [2023-12-16 08:14:27,356 INFO L226 Difference]: Without dead ends: 27153 [2023-12-16 08:14:27,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 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 08:14:27,371 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 874 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:27,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 994 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:14:27,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27153 states. [2023-12-16 08:14:29,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27153 to 27153. [2023-12-16 08:14:29,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27153 states, 21139 states have (on average 1.2745636028194334) internal successors, (26943), 21671 states have internal predecessors, (26943), 2887 states have call successors, (2887), 1965 states have call predecessors, (2887), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-16 08:14:29,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27153 states to 27153 states and 35146 transitions. [2023-12-16 08:14:29,181 INFO L78 Accepts]: Start accepts. Automaton has 27153 states and 35146 transitions. Word has length 151 [2023-12-16 08:14:29,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:29,181 INFO L495 AbstractCegarLoop]: Abstraction has 27153 states and 35146 transitions. [2023-12-16 08:14:29,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:29,182 INFO L276 IsEmpty]: Start isEmpty. Operand 27153 states and 35146 transitions. [2023-12-16 08:14:29,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 08:14:29,185 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:29,185 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:29,196 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 08:14:29,389 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 08:14:29,390 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:29,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:29,390 INFO L85 PathProgramCache]: Analyzing trace with hash -2005812484, now seen corresponding path program 1 times [2023-12-16 08:14:29,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:29,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2010131290] [2023-12-16 08:14:29,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:29,391 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:14:29,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:29,392 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 08:14:29,395 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 08:14:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:29,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:29,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:29,596 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 08:14:29,596 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:29,596 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:29,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2010131290] [2023-12-16 08:14:29,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2010131290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:29,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:29,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:29,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71522376] [2023-12-16 08:14:29,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:29,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:29,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:29,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:29,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:29,598 INFO L87 Difference]: Start difference. First operand 27153 states and 35146 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:31,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:31,711 INFO L93 Difference]: Finished difference Result 27783 states and 36149 transitions. [2023-12-16 08:14:31,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:31,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2023-12-16 08:14:31,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:31,794 INFO L225 Difference]: With dead ends: 27783 [2023-12-16 08:14:31,795 INFO L226 Difference]: Without dead ends: 27153 [2023-12-16 08:14:31,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 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 08:14:31,809 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 868 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:31,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 987 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:14:31,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27153 states. [2023-12-16 08:14:33,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27153 to 27153. [2023-12-16 08:14:33,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27153 states, 21139 states have (on average 1.2742324613274043) internal successors, (26936), 21671 states have internal predecessors, (26936), 2887 states have call successors, (2887), 1965 states have call predecessors, (2887), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-16 08:14:33,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27153 states to 27153 states and 35139 transitions. [2023-12-16 08:14:33,768 INFO L78 Accepts]: Start accepts. Automaton has 27153 states and 35139 transitions. Word has length 151 [2023-12-16 08:14:33,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:33,769 INFO L495 AbstractCegarLoop]: Abstraction has 27153 states and 35139 transitions. [2023-12-16 08:14:33,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:33,769 INFO L276 IsEmpty]: Start isEmpty. Operand 27153 states and 35139 transitions. [2023-12-16 08:14:33,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 08:14:33,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:33,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:33,778 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 08:14:33,973 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 08:14:33,974 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:33,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:33,974 INFO L85 PathProgramCache]: Analyzing trace with hash 738552704, now seen corresponding path program 1 times [2023-12-16 08:14:33,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:33,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72992304] [2023-12-16 08:14:33,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:33,975 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 08:14:33,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:33,979 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 08:14:33,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-16 08:14:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:34,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:34,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:34,170 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 08:14:34,170 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:34,170 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:34,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72992304] [2023-12-16 08:14:34,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [72992304] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:34,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:34,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:34,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87978555] [2023-12-16 08:14:34,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:34,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:34,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:34,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:34,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:34,172 INFO L87 Difference]: Start difference. First operand 27153 states and 35139 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:36,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:36,270 INFO L93 Difference]: Finished difference Result 27783 states and 36135 transitions. [2023-12-16 08:14:36,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:36,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2023-12-16 08:14:36,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:36,329 INFO L225 Difference]: With dead ends: 27783 [2023-12-16 08:14:36,330 INFO L226 Difference]: Without dead ends: 27153 [2023-12-16 08:14:36,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 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 08:14:36,354 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 862 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:36,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 980 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:14:36,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27153 states. [2023-12-16 08:14:38,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27153 to 27153. [2023-12-16 08:14:38,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27153 states, 21139 states have (on average 1.2739013198353755) internal successors, (26929), 21671 states have internal predecessors, (26929), 2887 states have call successors, (2887), 1965 states have call predecessors, (2887), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-16 08:14:38,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27153 states to 27153 states and 35132 transitions. [2023-12-16 08:14:38,369 INFO L78 Accepts]: Start accepts. Automaton has 27153 states and 35132 transitions. Word has length 151 [2023-12-16 08:14:38,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:38,369 INFO L495 AbstractCegarLoop]: Abstraction has 27153 states and 35132 transitions. [2023-12-16 08:14:38,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:38,370 INFO L276 IsEmpty]: Start isEmpty. Operand 27153 states and 35132 transitions. [2023-12-16 08:14:38,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 08:14:38,372 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:38,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:38,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 08:14:38,577 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 08:14:38,578 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:38,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:38,578 INFO L85 PathProgramCache]: Analyzing trace with hash -558392708, now seen corresponding path program 1 times [2023-12-16 08:14:38,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:38,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583176187] [2023-12-16 08:14:38,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:38,579 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 08:14:38,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:38,580 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 08:14:38,581 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 08:14:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:38,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:38,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:38,739 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 08:14:38,739 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:38,739 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:38,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583176187] [2023-12-16 08:14:38,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583176187] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:38,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:38,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:38,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857210048] [2023-12-16 08:14:38,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:38,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:38,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:38,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:38,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:38,740 INFO L87 Difference]: Start difference. First operand 27153 states and 35132 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:40,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:40,898 INFO L93 Difference]: Finished difference Result 27783 states and 36121 transitions. [2023-12-16 08:14:40,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:40,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2023-12-16 08:14:40,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:40,965 INFO L225 Difference]: With dead ends: 27783 [2023-12-16 08:14:40,965 INFO L226 Difference]: Without dead ends: 27153 [2023-12-16 08:14:40,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 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 08:14:40,979 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 856 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:40,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 973 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:14:40,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27153 states. [2023-12-16 08:14:43,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27153 to 27153. [2023-12-16 08:14:43,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27153 states, 21139 states have (on average 1.2735701783433464) internal successors, (26922), 21671 states have internal predecessors, (26922), 2887 states have call successors, (2887), 1965 states have call predecessors, (2887), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-16 08:14:43,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27153 states to 27153 states and 35125 transitions. [2023-12-16 08:14:43,084 INFO L78 Accepts]: Start accepts. Automaton has 27153 states and 35125 transitions. Word has length 151 [2023-12-16 08:14:43,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:43,084 INFO L495 AbstractCegarLoop]: Abstraction has 27153 states and 35125 transitions. [2023-12-16 08:14:43,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:43,085 INFO L276 IsEmpty]: Start isEmpty. Operand 27153 states and 35125 transitions. [2023-12-16 08:14:43,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 08:14:43,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:43,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:43,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-16 08:14:43,292 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 08:14:43,292 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:43,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:43,292 INFO L85 PathProgramCache]: Analyzing trace with hash 303440894, now seen corresponding path program 1 times [2023-12-16 08:14:43,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:43,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1748258334] [2023-12-16 08:14:43,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:43,293 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 08:14:43,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:43,294 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 08:14:43,296 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 08:14:43,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:43,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:43,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:43,475 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 08:14:43,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:43,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:43,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1748258334] [2023-12-16 08:14:43,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1748258334] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:43,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:43,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:43,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455360548] [2023-12-16 08:14:43,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:43,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:43,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:43,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:43,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:43,477 INFO L87 Difference]: Start difference. First operand 27153 states and 35125 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:45,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:45,843 INFO L93 Difference]: Finished difference Result 27783 states and 36107 transitions. [2023-12-16 08:14:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:45,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2023-12-16 08:14:45,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:45,900 INFO L225 Difference]: With dead ends: 27783 [2023-12-16 08:14:45,901 INFO L226 Difference]: Without dead ends: 27153 [2023-12-16 08:14:45,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 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 08:14:45,911 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 850 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:45,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 966 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:14:45,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27153 states. [2023-12-16 08:14:47,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27153 to 27153. [2023-12-16 08:14:47,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27153 states, 21139 states have (on average 1.2732390368513176) internal successors, (26915), 21671 states have internal predecessors, (26915), 2887 states have call successors, (2887), 1965 states have call predecessors, (2887), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-16 08:14:47,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27153 states to 27153 states and 35118 transitions. [2023-12-16 08:14:47,986 INFO L78 Accepts]: Start accepts. Automaton has 27153 states and 35118 transitions. Word has length 151 [2023-12-16 08:14:47,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:47,986 INFO L495 AbstractCegarLoop]: Abstraction has 27153 states and 35118 transitions. [2023-12-16 08:14:47,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:47,986 INFO L276 IsEmpty]: Start isEmpty. Operand 27153 states and 35118 transitions. [2023-12-16 08:14:47,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 08:14:47,996 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:47,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:48,001 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2023-12-16 08:14:48,201 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 08:14:48,201 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:48,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:48,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1472208390, now seen corresponding path program 1 times [2023-12-16 08:14:48,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:48,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [473898686] [2023-12-16 08:14:48,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:48,202 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 08:14:48,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:48,203 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 08:14:48,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-16 08:14:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:48,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:48,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:48,405 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 08:14:48,405 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:48,405 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:48,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [473898686] [2023-12-16 08:14:48,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [473898686] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:48,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:48,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:48,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747845995] [2023-12-16 08:14:48,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:48,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:48,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:48,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:48,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:48,408 INFO L87 Difference]: Start difference. First operand 27153 states and 35118 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:50,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:50,792 INFO L93 Difference]: Finished difference Result 27783 states and 36093 transitions. [2023-12-16 08:14:50,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:50,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 151 [2023-12-16 08:14:50,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:50,849 INFO L225 Difference]: With dead ends: 27783 [2023-12-16 08:14:50,849 INFO L226 Difference]: Without dead ends: 27153 [2023-12-16 08:14:50,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 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 08:14:50,859 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 843 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:50,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 959 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:14:50,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27153 states. Received shutdown request... [2023-12-16 08:14:51,505 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 08:14:51,505 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 (27)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:14:52,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-16 08:14:52,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2023-12-16 08:14:52,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27153 to 27153. [2023-12-16 08:14:53,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27153 states, 21139 states have (on average 1.2729078953592885) internal successors, (26908), 21671 states have internal predecessors, (26908), 2887 states have call successors, (2887), 1965 states have call predecessors, (2887), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-16 08:14:53,005 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 08:14:53,006 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 08:14:53,007 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 08:14:53,009 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] [2023-12-16 08:14:53,010 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:14:53,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:14:53 BoogieIcfgContainer [2023-12-16 08:14:53,012 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:14:53,012 INFO L158 Benchmark]: Toolchain (without parser) took 67639.20ms. Allocated memory was 217.1MB in the beginning and 6.5GB in the end (delta: 6.3GB). Free memory was 150.3MB in the beginning and 3.0GB in the end (delta: -2.8GB). Peak memory consumption was 3.5GB. Max. memory is 8.0GB. [2023-12-16 08:14:53,012 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 217.1MB. Free memory is still 167.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:14:53,012 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.67ms. Allocated memory is still 217.1MB. Free memory was 149.8MB in the beginning and 121.4MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-16 08:14:53,012 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.35ms. Allocated memory is still 217.1MB. Free memory was 121.4MB in the beginning and 116.8MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 08:14:53,012 INFO L158 Benchmark]: Boogie Preprocessor took 80.24ms. Allocated memory is still 217.1MB. Free memory was 116.8MB in the beginning and 110.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 08:14:53,012 INFO L158 Benchmark]: RCFGBuilder took 1048.68ms. Allocated memory was 217.1MB in the beginning and 329.3MB in the end (delta: 112.2MB). Free memory was 110.4MB in the beginning and 236.4MB in the end (delta: -125.9MB). Peak memory consumption was 36.1MB. Max. memory is 8.0GB. [2023-12-16 08:14:53,013 INFO L158 Benchmark]: TraceAbstraction took 66041.31ms. Allocated memory was 329.3MB in the beginning and 6.5GB in the end (delta: 6.2GB). Free memory was 235.3MB in the beginning and 3.0GB in the end (delta: -2.7GB). Peak memory consumption was 3.5GB. Max. memory is 8.0GB. [2023-12-16 08:14:53,013 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 217.1MB. Free memory is still 167.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 395.67ms. Allocated memory is still 217.1MB. Free memory was 149.8MB in the beginning and 121.4MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 67.35ms. Allocated memory is still 217.1MB. Free memory was 121.4MB in the beginning and 116.8MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 80.24ms. Allocated memory is still 217.1MB. Free memory was 116.8MB in the beginning and 110.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1048.68ms. Allocated memory was 217.1MB in the beginning and 329.3MB in the end (delta: 112.2MB). Free memory was 110.4MB in the beginning and 236.4MB in the end (delta: -125.9MB). Peak memory consumption was 36.1MB. Max. memory is 8.0GB. * TraceAbstraction took 66041.31ms. Allocated memory was 329.3MB in the beginning and 6.5GB in the end (delta: 6.2GB). Free memory was 235.3MB in the beginning and 3.0GB in the end (delta: -2.7GB). Peak memory consumption was 3.5GB. 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: 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). - 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). - StatisticsResult: Ultimate Automizer benchmark data CFG has 15 procedures, 429 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 66.0s, OverallIterations: 26, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 31.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14596 SdHoareTripleChecker+Valid, 8.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14199 mSDsluCounter, 33444 SdHoareTripleChecker+Invalid, 7.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20505 mSDsCounter, 863 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12120 IncrementalHoareTripleChecker+Invalid, 12983 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 863 mSolverCounterUnsat, 12939 mSDtfsCounter, 12120 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3178 GetRequests, 3096 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27153occurred in iteration=17, InterpolantAutomatonStates: 112, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 25.1s AutomataMinimizationTime, 26 MinimizatonAttempts, 720 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 3183 NumberOfCodeBlocks, 3183 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 3157 ConstructedInterpolants, 0 QuantifiedInterpolants, 4841 SizeOfPredicates, 5 NumberOfNonLiveVariables, 9114 ConjunctsInSsa, 94 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 PerfectInterpolantSequences, 694/694 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