/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.10.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:13:39,540 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:13:39,589 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 08:13:39,593 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:13:39,593 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:13:39,610 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:13:39,610 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:13:39,610 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:13:39,611 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:13:39,611 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:13:39,611 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:13:39,612 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:13:39,612 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:13:39,612 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:13:39,613 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:13:39,613 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:13:39,613 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:13:39,614 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:13:39,614 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:13:39,614 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:13:39,615 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:13:39,619 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:13:39,619 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:13:39,619 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:13:39,620 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:13:39,620 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:13:39,620 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:13:39,620 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:13:39,621 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:13:39,621 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:13:39,621 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:13:39,621 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:13:39,622 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:13:39,622 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:13:39,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:13:39,622 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:13:39,623 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:13:39,623 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:13:39,623 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:13:39,623 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:13:39,624 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:13:39,627 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:13:39,627 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:13:39,627 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:13:39,628 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:13:39,628 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:13:39,629 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:13:39,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:13:39,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:13:39,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:13:39,872 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:13:39,873 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:13:39,875 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.10.cil-1.c [2023-12-16 08:13:41,077 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:13:41,366 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:13:41,366 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.10.cil-1.c [2023-12-16 08:13:41,387 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ba0145f/10fed06fbe084ba4bb3529a641f1db06/FLAGf48152c14 [2023-12-16 08:13:41,398 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ba0145f/10fed06fbe084ba4bb3529a641f1db06 [2023-12-16 08:13:41,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:13:41,401 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:13:41,402 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:13:41,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:13:41,406 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:13:41,407 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:13:41" (1/1) ... [2023-12-16 08:13:41,408 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a94d693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:41, skipping insertion in model container [2023-12-16 08:13:41,408 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:13:41" (1/1) ... [2023-12-16 08:13:41,464 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:13:41,588 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.10.cil-1.c[911,924] [2023-12-16 08:13:41,647 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.10.cil-1.c[8416,8429] [2023-12-16 08:13:41,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:13:41,771 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:13:41,784 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.10.cil-1.c[911,924] [2023-12-16 08:13:41,808 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.10.cil-1.c[8416,8429] [2023-12-16 08:13:41,858 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:13:41,879 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:13:41,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:41 WrapperNode [2023-12-16 08:13:41,880 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:13:41,881 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:13:41,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:13:41,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:13:41,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:41" (1/1) ... [2023-12-16 08:13:41,914 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:41" (1/1) ... [2023-12-16 08:13:41,963 INFO L138 Inliner]: procedures = 76, calls = 92, calls flagged for inlining = 43, calls inlined = 43, statements flattened = 955 [2023-12-16 08:13:41,964 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:13:41,964 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:13:41,965 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:13:41,965 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:13:41,974 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:41" (1/1) ... [2023-12-16 08:13:41,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:41" (1/1) ... [2023-12-16 08:13:41,982 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:41" (1/1) ... [2023-12-16 08:13:42,006 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 08:13:42,006 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:41" (1/1) ... [2023-12-16 08:13:42,007 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:41" (1/1) ... [2023-12-16 08:13:42,034 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:41" (1/1) ... [2023-12-16 08:13:42,073 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:41" (1/1) ... [2023-12-16 08:13:42,078 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:41" (1/1) ... [2023-12-16 08:13:42,081 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:41" (1/1) ... [2023-12-16 08:13:42,100 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:13:42,101 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:13:42,101 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:13:42,101 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:13:42,102 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:41" (1/1) ... [2023-12-16 08:13:42,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:13:42,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:13:42,138 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 08:13:42,160 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 08:13:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:13:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 08:13:42,170 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 08:13:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-16 08:13:42,170 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-16 08:13:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-16 08:13:42,171 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-16 08:13:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-16 08:13:42,171 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-16 08:13:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-16 08:13:42,171 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-16 08:13:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-16 08:13:42,171 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-16 08:13:42,171 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-16 08:13:42,171 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-16 08:13:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-16 08:13:42,172 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-16 08:13:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:13:42,172 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-16 08:13:42,172 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-16 08:13:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-16 08:13:42,173 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-16 08:13:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-16 08:13:42,174 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-16 08:13:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-16 08:13:42,175 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-16 08:13:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-16 08:13:42,175 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-16 08:13:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:13:42,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:13:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-16 08:13:42,175 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-16 08:13:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2023-12-16 08:13:42,175 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2023-12-16 08:13:42,338 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:13:42,341 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:13:43,108 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1bv32 == ~q_free~0); [2023-12-16 08:13:43,108 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 08:13:43,201 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:13:43,283 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:13:43,284 INFO L309 CfgBuilder]: Removed 17 assume(true) statements. [2023-12-16 08:13:43,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:13:43 BoogieIcfgContainer [2023-12-16 08:13:43,284 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:13:43,287 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:13:43,287 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:13:43,290 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:13:43,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:13:41" (1/3) ... [2023-12-16 08:13:43,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8c9892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:13:43, skipping insertion in model container [2023-12-16 08:13:43,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:41" (2/3) ... [2023-12-16 08:13:43,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8c9892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:13:43, skipping insertion in model container [2023-12-16 08:13:43,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:13:43" (3/3) ... [2023-12-16 08:13:43,293 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.10.cil-1.c [2023-12-16 08:13:43,309 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:13:43,309 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 08:13:43,380 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:13:43,386 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;@57c494b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:13:43,386 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 08:13:43,396 INFO L276 IsEmpty]: Start isEmpty. Operand has 414 states, 354 states have (on average 1.7118644067796611) internal successors, (606), 362 states have internal predecessors, (606), 42 states have call successors, (42), 15 states have call predecessors, (42), 15 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-16 08:13:43,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 08:13:43,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:43,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:43,413 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:43,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:43,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1036360840, now seen corresponding path program 1 times [2023-12-16 08:13:43,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:43,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768492209] [2023-12-16 08:13:43,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:43,436 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:43,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:43,444 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 08:13:43,473 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 08:13:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:43,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 08:13:43,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:43,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:13:43,695 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:43,696 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:43,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768492209] [2023-12-16 08:13:43,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768492209] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:43,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:43,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 08:13:43,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765898379] [2023-12-16 08:13:43,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:43,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:43,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:43,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:43,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:43,733 INFO L87 Difference]: Start difference. First operand has 414 states, 354 states have (on average 1.7118644067796611) internal successors, (606), 362 states have internal predecessors, (606), 42 states have call successors, (42), 15 states have call predecessors, (42), 15 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) 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 08:13:44,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:44,963 INFO L93 Difference]: Finished difference Result 912 states and 1515 transitions. [2023-12-16 08:13:44,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:13:44,965 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 08:13:44,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:44,977 INFO L225 Difference]: With dead ends: 912 [2023-12-16 08:13:44,977 INFO L226 Difference]: Without dead ends: 516 [2023-12-16 08:13:44,982 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 08:13:44,984 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 449 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:44,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 1229 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 08:13:45,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-12-16 08:13:45,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 509. [2023-12-16 08:13:45,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 430 states have (on average 1.583720930232558) internal successors, (681), 437 states have internal predecessors, (681), 55 states have call successors, (55), 22 states have call predecessors, (55), 22 states have return successors, (56), 52 states have call predecessors, (56), 51 states have call successors, (56) [2023-12-16 08:13:45,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 792 transitions. [2023-12-16 08:13:45,058 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 792 transitions. Word has length 57 [2023-12-16 08:13:45,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:45,058 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 792 transitions. [2023-12-16 08:13:45,059 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 08:13:45,059 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 792 transitions. [2023-12-16 08:13:45,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 08:13:45,062 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:45,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:45,070 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 08:13:45,266 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 08:13:45,267 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:45,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:45,267 INFO L85 PathProgramCache]: Analyzing trace with hash -907631928, now seen corresponding path program 1 times [2023-12-16 08:13:45,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:45,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498818977] [2023-12-16 08:13:45,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:45,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:45,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:45,270 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 08:13:45,272 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 08:13:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:45,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:13:45,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:45,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:13:45,416 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:45,417 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:45,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498818977] [2023-12-16 08:13:45,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498818977] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:45,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:45,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 08:13:45,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882703189] [2023-12-16 08:13:45,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:45,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:45,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:45,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:45,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:45,420 INFO L87 Difference]: Start difference. First operand 509 states and 792 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 08:13:46,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:46,410 INFO L93 Difference]: Finished difference Result 920 states and 1407 transitions. [2023-12-16 08:13:46,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:13:46,411 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 08:13:46,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:46,419 INFO L225 Difference]: With dead ends: 920 [2023-12-16 08:13:46,419 INFO L226 Difference]: Without dead ends: 730 [2023-12-16 08:13:46,421 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 08:13:46,422 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 438 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:46,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 1225 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 08:13:46,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-16 08:13:46,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 722. [2023-12-16 08:13:46,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 595 states have (on average 1.5411764705882354) internal successors, (917), 610 states have internal predecessors, (917), 81 states have call successors, (81), 36 states have call predecessors, (81), 44 states have return successors, (102), 80 states have call predecessors, (102), 77 states have call successors, (102) [2023-12-16 08:13:46,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1100 transitions. [2023-12-16 08:13:46,478 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1100 transitions. Word has length 57 [2023-12-16 08:13:46,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:46,478 INFO L495 AbstractCegarLoop]: Abstraction has 722 states and 1100 transitions. [2023-12-16 08:13:46,479 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 08:13:46,479 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1100 transitions. [2023-12-16 08:13:46,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 08:13:46,486 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:46,486 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 08:13:46,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 08:13:46,688 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 08:13:46,689 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:46,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:46,690 INFO L85 PathProgramCache]: Analyzing trace with hash -831794040, now seen corresponding path program 1 times [2023-12-16 08:13:46,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:46,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270212536] [2023-12-16 08:13:46,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:46,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:46,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:46,692 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 08:13:46,698 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 08:13:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:46,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:46,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:46,828 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 08:13:46,828 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:46,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:46,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270212536] [2023-12-16 08:13:46,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1270212536] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:46,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:46,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:46,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267296011] [2023-12-16 08:13:46,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:46,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:46,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:46,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:46,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:46,831 INFO L87 Difference]: Start difference. First operand 722 states and 1100 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 08:13:46,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:46,970 INFO L93 Difference]: Finished difference Result 1468 states and 2167 transitions. [2023-12-16 08:13:46,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:46,971 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 08:13:46,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:46,982 INFO L225 Difference]: With dead ends: 1468 [2023-12-16 08:13:46,982 INFO L226 Difference]: Without dead ends: 1079 [2023-12-16 08:13:46,983 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 08:13:46,986 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 610 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:46,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 733 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:46,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2023-12-16 08:13:47,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1071. [2023-12-16 08:13:47,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 866 states have (on average 1.497690531177829) internal successors, (1297), 891 states have internal predecessors, (1297), 121 states have call successors, (121), 64 states have call predecessors, (121), 82 states have return successors, (159), 120 states have call predecessors, (159), 117 states have call successors, (159) [2023-12-16 08:13:47,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1577 transitions. [2023-12-16 08:13:47,076 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1577 transitions. Word has length 57 [2023-12-16 08:13:47,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:47,077 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1577 transitions. [2023-12-16 08:13:47,077 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 08:13:47,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1577 transitions. [2023-12-16 08:13:47,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:13:47,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:47,080 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 08:13:47,087 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-16 08:13:47,284 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 08:13:47,285 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:47,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:47,285 INFO L85 PathProgramCache]: Analyzing trace with hash 767964005, now seen corresponding path program 1 times [2023-12-16 08:13:47,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:47,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2005454650] [2023-12-16 08:13:47,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:47,286 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 08:13:47,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:47,288 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 08:13:47,292 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 08:13:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:47,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:13:47,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:47,447 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 08:13:47,448 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:47,448 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:47,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2005454650] [2023-12-16 08:13:47,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2005454650] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:47,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:47,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:13:47,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66780094] [2023-12-16 08:13:47,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:47,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:13:47,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:47,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:13:47,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:13:47,450 INFO L87 Difference]: Start difference. First operand 1071 states and 1577 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 08:13:47,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:47,663 INFO L93 Difference]: Finished difference Result 1845 states and 2681 transitions. [2023-12-16 08:13:47,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:13:47,663 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 08:13:47,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:47,668 INFO L225 Difference]: With dead ends: 1845 [2023-12-16 08:13:47,668 INFO L226 Difference]: Without dead ends: 1107 [2023-12-16 08:13:47,670 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 08:13:47,671 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 6 mSDsluCounter, 2378 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2974 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:47,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2974 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:47,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2023-12-16 08:13:47,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 1087. [2023-12-16 08:13:47,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 878 states have (on average 1.4863325740318907) internal successors, (1305), 903 states have internal predecessors, (1305), 121 states have call successors, (121), 64 states have call predecessors, (121), 86 states have return successors, (163), 124 states have call predecessors, (163), 117 states have call successors, (163) [2023-12-16 08:13:47,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1589 transitions. [2023-12-16 08:13:47,729 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1589 transitions. Word has length 58 [2023-12-16 08:13:47,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:47,729 INFO L495 AbstractCegarLoop]: Abstraction has 1087 states and 1589 transitions. [2023-12-16 08:13:47,729 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 08:13:47,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1589 transitions. [2023-12-16 08:13:47,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:13:47,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:47,731 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 08:13:47,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 08:13:47,936 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 08:13:47,936 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:47,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:47,937 INFO L85 PathProgramCache]: Analyzing trace with hash 695577447, now seen corresponding path program 1 times [2023-12-16 08:13:47,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:47,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685923121] [2023-12-16 08:13:47,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:47,937 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 08:13:47,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:47,939 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 08:13:47,940 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 08:13:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:48,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:48,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:48,101 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 08:13:48,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:48,104 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:48,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685923121] [2023-12-16 08:13:48,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [685923121] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:48,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:48,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:48,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586626249] [2023-12-16 08:13:48,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:48,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:48,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:48,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:48,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:48,106 INFO L87 Difference]: Start difference. First operand 1087 states and 1589 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 08:13:48,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:48,251 INFO L93 Difference]: Finished difference Result 2539 states and 3605 transitions. [2023-12-16 08:13:48,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:48,251 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 08:13:48,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:48,260 INFO L225 Difference]: With dead ends: 2539 [2023-12-16 08:13:48,260 INFO L226 Difference]: Without dead ends: 1785 [2023-12-16 08:13:48,262 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 08:13:48,263 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 599 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:48,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 709 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:48,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2023-12-16 08:13:48,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1777. [2023-12-16 08:13:48,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 1408 states have (on average 1.4339488636363635) internal successors, (2019), 1453 states have internal predecessors, (2019), 201 states have call successors, (201), 120 states have call predecessors, (201), 166 states have return successors, (281), 208 states have call predecessors, (281), 197 states have call successors, (281) [2023-12-16 08:13:48,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 2501 transitions. [2023-12-16 08:13:48,363 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 2501 transitions. Word has length 58 [2023-12-16 08:13:48,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:48,363 INFO L495 AbstractCegarLoop]: Abstraction has 1777 states and 2501 transitions. [2023-12-16 08:13:48,363 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 08:13:48,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 2501 transitions. [2023-12-16 08:13:48,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-16 08:13:48,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:48,366 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 08:13:48,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 08:13:48,570 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 08:13:48,571 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:48,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:48,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1100824420, now seen corresponding path program 1 times [2023-12-16 08:13:48,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:48,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332918148] [2023-12-16 08:13:48,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:48,572 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 08:13:48,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:48,574 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 08:13:48,596 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 08:13:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:48,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:13:48,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:48,704 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 08:13:48,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:48,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:48,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332918148] [2023-12-16 08:13:48,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332918148] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:48,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:48,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:13:48,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353159913] [2023-12-16 08:13:48,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:48,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:13:48,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:48,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:13:48,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:13:48,707 INFO L87 Difference]: Start difference. First operand 1777 states and 2501 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 08:13:49,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:49,008 INFO L93 Difference]: Finished difference Result 3269 states and 4557 transitions. [2023-12-16 08:13:49,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:13:49,009 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 08:13:49,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:49,018 INFO L225 Difference]: With dead ends: 3269 [2023-12-16 08:13:49,018 INFO L226 Difference]: Without dead ends: 1825 [2023-12-16 08:13:49,024 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 08:13:49,025 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 3 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2969 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:49,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2969 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:49,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1825 states. [2023-12-16 08:13:49,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1825 to 1809. [2023-12-16 08:13:49,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1809 states, 1432 states have (on average 1.4210893854748603) internal successors, (2035), 1477 states have internal predecessors, (2035), 201 states have call successors, (201), 120 states have call predecessors, (201), 174 states have return successors, (289), 216 states have call predecessors, (289), 197 states have call successors, (289) [2023-12-16 08:13:49,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 2525 transitions. [2023-12-16 08:13:49,139 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 2525 transitions. Word has length 73 [2023-12-16 08:13:49,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:49,139 INFO L495 AbstractCegarLoop]: Abstraction has 1809 states and 2525 transitions. [2023-12-16 08:13:49,141 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 08:13:49,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 2525 transitions. [2023-12-16 08:13:49,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-16 08:13:49,144 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:49,144 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 08:13:49,155 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 08:13:49,348 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 08:13:49,349 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:49,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:49,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1348775710, now seen corresponding path program 1 times [2023-12-16 08:13:49,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:49,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320542864] [2023-12-16 08:13:49,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:49,350 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 08:13:49,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:49,352 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 08:13:49,364 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 08:13:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:49,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:49,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:49,528 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 08:13:49,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:49,529 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:49,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320542864] [2023-12-16 08:13:49,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320542864] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:49,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:49,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:49,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920759761] [2023-12-16 08:13:49,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:49,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:13:49,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:49,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:13:49,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:13:49,531 INFO L87 Difference]: Start difference. First operand 1809 states and 2525 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 08:13:50,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:50,248 INFO L93 Difference]: Finished difference Result 4725 states and 6508 transitions. [2023-12-16 08:13:50,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:13:50,249 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 08:13:50,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:50,267 INFO L225 Difference]: With dead ends: 4725 [2023-12-16 08:13:50,267 INFO L226 Difference]: Without dead ends: 3253 [2023-12-16 08:13:50,271 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 08:13:50,272 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 878 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:50,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 640 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 08:13:50,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3253 states. [2023-12-16 08:13:50,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3253 to 3249. [2023-12-16 08:13:50,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3249 states, 2516 states have (on average 1.3716216216216217) internal successors, (3451), 2609 states have internal predecessors, (3451), 381 states have call successors, (381), 232 states have call predecessors, (381), 350 states have return successors, (626), 416 states have call predecessors, (626), 377 states have call successors, (626) [2023-12-16 08:13:50,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 4458 transitions. [2023-12-16 08:13:50,509 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 4458 transitions. Word has length 73 [2023-12-16 08:13:50,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:50,509 INFO L495 AbstractCegarLoop]: Abstraction has 3249 states and 4458 transitions. [2023-12-16 08:13:50,509 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 08:13:50,509 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 4458 transitions. [2023-12-16 08:13:50,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-16 08:13:50,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:50,515 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 08:13:50,522 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 08:13:50,723 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 08:13:50,723 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:50,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:50,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2104581720, now seen corresponding path program 1 times [2023-12-16 08:13:50,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:50,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [347653815] [2023-12-16 08:13:50,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:50,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:50,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:50,726 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 08:13:50,730 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 08:13:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:50,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:50,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:50,850 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 08:13:50,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:50,851 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:50,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [347653815] [2023-12-16 08:13:50,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [347653815] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:50,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:50,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:50,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248344308] [2023-12-16 08:13:50,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:50,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:50,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:50,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:50,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:50,853 INFO L87 Difference]: Start difference. First operand 3249 states and 4458 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 08:13:51,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:51,228 INFO L93 Difference]: Finished difference Result 8917 states and 12087 transitions. [2023-12-16 08:13:51,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:51,229 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 08:13:51,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:51,254 INFO L225 Difference]: With dead ends: 8917 [2023-12-16 08:13:51,254 INFO L226 Difference]: Without dead ends: 4673 [2023-12-16 08:13:51,265 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 08:13:51,266 INFO L413 NwaCegarLoop]: 699 mSDtfsCounter, 110 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:51,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1289 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:51,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4673 states. [2023-12-16 08:13:51,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4673 to 4673. [2023-12-16 08:13:51,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4673 states, 3596 states have (on average 1.3523359288097887) internal successors, (4863), 3729 states have internal predecessors, (4863), 545 states have call successors, (545), 344 states have call predecessors, (545), 530 states have return successors, (958), 608 states have call predecessors, (958), 541 states have call successors, (958) [2023-12-16 08:13:51,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4673 states to 4673 states and 6366 transitions. [2023-12-16 08:13:51,505 INFO L78 Accepts]: Start accepts. Automaton has 4673 states and 6366 transitions. Word has length 75 [2023-12-16 08:13:51,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:51,505 INFO L495 AbstractCegarLoop]: Abstraction has 4673 states and 6366 transitions. [2023-12-16 08:13:51,506 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 08:13:51,506 INFO L276 IsEmpty]: Start isEmpty. Operand 4673 states and 6366 transitions. [2023-12-16 08:13:51,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-16 08:13:51,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:51,520 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 08:13:51,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 08:13:51,724 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 08:13:51,724 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:51,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:51,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1977155599, now seen corresponding path program 1 times [2023-12-16 08:13:51,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:51,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1710139845] [2023-12-16 08:13:51,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:51,726 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 08:13:51,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:51,729 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 08:13:51,764 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 (10)] Waiting until timeout for monitored process [2023-12-16 08:13:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:51,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:13:51,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:51,889 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 08:13:51,889 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:51,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:51,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1710139845] [2023-12-16 08:13:51,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1710139845] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:51,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:51,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:13:51,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262977766] [2023-12-16 08:13:51,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:51,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:13:51,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:51,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:13:51,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:13:51,891 INFO L87 Difference]: Start difference. First operand 4673 states and 6366 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 08:13:52,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:52,277 INFO L93 Difference]: Finished difference Result 9029 states and 12320 transitions. [2023-12-16 08:13:52,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:13:52,278 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 08:13:52,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:52,303 INFO L225 Difference]: With dead ends: 9029 [2023-12-16 08:13:52,303 INFO L226 Difference]: Without dead ends: 4713 [2023-12-16 08:13:52,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 08:13:52,319 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 32 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 2976 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:52,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 2976 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 08:13:52,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4713 states. [2023-12-16 08:13:52,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4713 to 4227. [2023-12-16 08:13:52,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4227 states, 3318 states have (on average 1.3414707655213984) internal successors, (4451), 3390 states have internal predecessors, (4451), 449 states have call successors, (449), 293 states have call predecessors, (449), 458 states have return successors, (815), 552 states have call predecessors, (815), 445 states have call successors, (815) [2023-12-16 08:13:52,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4227 states to 4227 states and 5715 transitions. [2023-12-16 08:13:52,600 INFO L78 Accepts]: Start accepts. Automaton has 4227 states and 5715 transitions. Word has length 138 [2023-12-16 08:13:52,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:52,600 INFO L495 AbstractCegarLoop]: Abstraction has 4227 states and 5715 transitions. [2023-12-16 08:13:52,601 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 08:13:52,601 INFO L276 IsEmpty]: Start isEmpty. Operand 4227 states and 5715 transitions. [2023-12-16 08:13:52,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 08:13:52,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:52,613 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 08:13:52,622 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 08:13:52,818 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 08:13:52,819 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:52,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:52,820 INFO L85 PathProgramCache]: Analyzing trace with hash -343412874, now seen corresponding path program 1 times [2023-12-16 08:13:52,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:52,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823897183] [2023-12-16 08:13:52,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:52,820 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:52,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:52,822 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 08:13:52,828 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 08:13:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:52,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:52,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:52,968 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 08:13:52,969 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:52,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:52,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823897183] [2023-12-16 08:13:52,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [823897183] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:52,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:52,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:52,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271025111] [2023-12-16 08:13:52,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:52,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:52,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:52,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:52,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:52,972 INFO L87 Difference]: Start difference. First operand 4227 states and 5715 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 08:13:53,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:53,196 INFO L93 Difference]: Finished difference Result 6534 states and 8778 transitions. [2023-12-16 08:13:53,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:53,197 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 08:13:53,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:53,209 INFO L225 Difference]: With dead ends: 6534 [2023-12-16 08:13:53,209 INFO L226 Difference]: Without dead ends: 2704 [2023-12-16 08:13:53,218 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 08:13:53,219 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 138 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:53,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1055 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:53,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2704 states. [2023-12-16 08:13:53,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2704 to 2704. [2023-12-16 08:13:53,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2704 states, 2137 states have (on average 1.3575105287786617) internal successors, (2901), 2183 states have internal predecessors, (2901), 273 states have call successors, (273), 181 states have call predecessors, (273), 292 states have return successors, (495), 340 states have call predecessors, (495), 269 states have call successors, (495) [2023-12-16 08:13:53,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2704 states to 2704 states and 3669 transitions. [2023-12-16 08:13:53,381 INFO L78 Accepts]: Start accepts. Automaton has 2704 states and 3669 transitions. Word has length 139 [2023-12-16 08:13:53,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:53,381 INFO L495 AbstractCegarLoop]: Abstraction has 2704 states and 3669 transitions. [2023-12-16 08:13:53,382 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 08:13:53,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2704 states and 3669 transitions. [2023-12-16 08:13:53,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 08:13:53,390 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:53,391 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 08:13:53,398 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 08:13:53,595 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 08:13:53,596 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:53,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:53,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1223568567, now seen corresponding path program 1 times [2023-12-16 08:13:53,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:53,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852974875] [2023-12-16 08:13:53,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:53,598 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:53,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:53,599 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 08:13:53,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 08:13:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:53,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:53,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:53,844 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 08:13:53,845 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:53,845 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:53,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852974875] [2023-12-16 08:13:53,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852974875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:53,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:53,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:53,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387232205] [2023-12-16 08:13:53,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:53,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:53,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:53,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:53,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:53,847 INFO L87 Difference]: Start difference. First operand 2704 states and 3669 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 08:13:54,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:54,170 INFO L93 Difference]: Finished difference Result 6404 states and 8730 transitions. [2023-12-16 08:13:54,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:54,170 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 08:13:54,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:54,199 INFO L225 Difference]: With dead ends: 6404 [2023-12-16 08:13:54,199 INFO L226 Difference]: Without dead ends: 4297 [2023-12-16 08:13:54,205 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 08:13:54,206 INFO L413 NwaCegarLoop]: 608 mSDtfsCounter, 64 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:54,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 1185 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:54,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4297 states. [2023-12-16 08:13:54,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4297 to 4269. [2023-12-16 08:13:54,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4269 states, 3364 states have (on average 1.3492865636147444) internal successors, (4539), 3446 states have internal predecessors, (4539), 429 states have call successors, (429), 289 states have call predecessors, (429), 474 states have return successors, (804), 534 states have call predecessors, (804), 425 states have call successors, (804) [2023-12-16 08:13:54,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4269 states to 4269 states and 5772 transitions. [2023-12-16 08:13:54,428 INFO L78 Accepts]: Start accepts. Automaton has 4269 states and 5772 transitions. Word has length 141 [2023-12-16 08:13:54,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:54,429 INFO L495 AbstractCegarLoop]: Abstraction has 4269 states and 5772 transitions. [2023-12-16 08:13:54,429 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 08:13:54,429 INFO L276 IsEmpty]: Start isEmpty. Operand 4269 states and 5772 transitions. [2023-12-16 08:13:54,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 08:13:54,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:54,438 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 08:13:54,446 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 08:13:54,645 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 08:13:54,646 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:54,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:54,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1072250222, now seen corresponding path program 1 times [2023-12-16 08:13:54,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:54,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080051229] [2023-12-16 08:13:54,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:54,647 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 08:13:54,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:54,649 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 08:13:54,681 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 08:13:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:54,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:54,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:54,820 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 08:13:54,820 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:54,820 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:54,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080051229] [2023-12-16 08:13:54,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2080051229] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:54,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:54,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:54,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259102769] [2023-12-16 08:13:54,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:54,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:54,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:54,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:54,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:54,822 INFO L87 Difference]: Start difference. First operand 4269 states and 5772 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 08:13:55,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:55,237 INFO L93 Difference]: Finished difference Result 11185 states and 15513 transitions. [2023-12-16 08:13:55,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:55,237 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 08:13:55,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:55,273 INFO L225 Difference]: With dead ends: 11185 [2023-12-16 08:13:55,274 INFO L226 Difference]: Without dead ends: 7513 [2023-12-16 08:13:55,285 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 08:13:55,286 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 94 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:55,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1223 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:55,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7513 states. [2023-12-16 08:13:55,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7513 to 7461. [2023-12-16 08:13:55,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7461 states, 5856 states have (on average 1.3212090163934427) internal successors, (7737), 5988 states have internal predecessors, (7737), 765 states have call successors, (765), 523 states have call predecessors, (765), 838 states have return successors, (1602), 950 states have call predecessors, (1602), 761 states have call successors, (1602) [2023-12-16 08:13:55,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7461 states to 7461 states and 10104 transitions. [2023-12-16 08:13:55,713 INFO L78 Accepts]: Start accepts. Automaton has 7461 states and 10104 transitions. Word has length 142 [2023-12-16 08:13:55,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:55,714 INFO L495 AbstractCegarLoop]: Abstraction has 7461 states and 10104 transitions. [2023-12-16 08:13:55,714 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 08:13:55,714 INFO L276 IsEmpty]: Start isEmpty. Operand 7461 states and 10104 transitions. [2023-12-16 08:13:55,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 08:13:55,728 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:55,729 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 08:13:55,734 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 08:13:55,934 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 08:13:55,934 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:55,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:55,935 INFO L85 PathProgramCache]: Analyzing trace with hash -302565347, now seen corresponding path program 1 times [2023-12-16 08:13:55,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:55,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248049716] [2023-12-16 08:13:55,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:55,935 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 08:13:55,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:55,937 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 08:13:55,948 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 08:13:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:56,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:56,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:56,177 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 08:13:56,177 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:56,177 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:56,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248049716] [2023-12-16 08:13:56,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248049716] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:56,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:56,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:56,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590047134] [2023-12-16 08:13:56,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:56,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:56,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:56,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:56,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:56,180 INFO L87 Difference]: Start difference. First operand 7461 states and 10104 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 08:13:56,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:56,911 INFO L93 Difference]: Finished difference Result 21073 states and 28761 transitions. [2023-12-16 08:13:56,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:56,911 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 08:13:56,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:56,955 INFO L225 Difference]: With dead ends: 21073 [2023-12-16 08:13:56,956 INFO L226 Difference]: Without dead ends: 14209 [2023-12-16 08:13:56,974 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 08:13:56,975 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 68 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:56,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1194 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:56,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14209 states. [2023-12-16 08:13:57,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14209 to 14205. [2023-12-16 08:13:57,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14205 states, 11123 states have (on average 1.3036950463004584) internal successors, (14501), 11384 states have internal predecessors, (14501), 1473 states have call successors, (1473), 1009 states have call predecessors, (1473), 1607 states have return successors, (3076), 1812 states have call predecessors, (3076), 1469 states have call successors, (3076) [2023-12-16 08:13:57,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14205 states to 14205 states and 19050 transitions. [2023-12-16 08:13:57,798 INFO L78 Accepts]: Start accepts. Automaton has 14205 states and 19050 transitions. Word has length 143 [2023-12-16 08:13:57,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:57,798 INFO L495 AbstractCegarLoop]: Abstraction has 14205 states and 19050 transitions. [2023-12-16 08:13:57,798 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 08:13:57,798 INFO L276 IsEmpty]: Start isEmpty. Operand 14205 states and 19050 transitions. [2023-12-16 08:13:57,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 08:13:57,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:57,820 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 08:13:57,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-16 08:13:58,025 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 08:13:58,026 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:58,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:58,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1568796773, now seen corresponding path program 1 times [2023-12-16 08:13:58,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:58,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484686043] [2023-12-16 08:13:58,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:58,027 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 08:13:58,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:58,029 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 08:13:58,064 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 08:13:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:58,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:58,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:58,183 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 08:13:58,183 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:58,183 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:58,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484686043] [2023-12-16 08:13:58,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484686043] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:58,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:58,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:58,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8394341] [2023-12-16 08:13:58,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:58,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:58,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:58,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:58,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:58,185 INFO L87 Difference]: Start difference. First operand 14205 states and 19050 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 08:14:00,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:00,395 INFO L93 Difference]: Finished difference Result 40852 states and 54798 transitions. [2023-12-16 08:14:00,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:14:00,396 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 08:14:00,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:00,491 INFO L225 Difference]: With dead ends: 40852 [2023-12-16 08:14:00,492 INFO L226 Difference]: Without dead ends: 26957 [2023-12-16 08:14:00,527 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 08:14:00,528 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 909 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:00,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [944 Valid, 888 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:14:00,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26957 states. [2023-12-16 08:14:01,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26957 to 26909. [2023-12-16 08:14:02,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26909 states, 20921 states have (on average 1.2898045026528369) internal successors, (26984), 21405 states have internal predecessors, (26984), 2868 states have call successors, (2868), 1960 states have call predecessors, (2868), 3118 states have return successors, (5870), 3544 states have call predecessors, (5870), 2864 states have call successors, (5870) [2023-12-16 08:14:02,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26909 states to 26909 states and 35722 transitions. [2023-12-16 08:14:02,114 INFO L78 Accepts]: Start accepts. Automaton has 26909 states and 35722 transitions. Word has length 147 [2023-12-16 08:14:02,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:02,115 INFO L495 AbstractCegarLoop]: Abstraction has 26909 states and 35722 transitions. [2023-12-16 08:14:02,115 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 08:14:02,115 INFO L276 IsEmpty]: Start isEmpty. Operand 26909 states and 35722 transitions. [2023-12-16 08:14:02,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 08:14:02,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:02,133 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] [2023-12-16 08:14:02,141 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 08:14:02,338 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 08:14:02,338 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:02,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:02,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1791222778, now seen corresponding path program 1 times [2023-12-16 08:14:02,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:02,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526795057] [2023-12-16 08:14:02,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:02,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:14:02,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:02,342 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 08:14:02,374 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 08:14:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:02,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:14:02,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:02,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:14:02,523 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:02,524 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:02,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526795057] [2023-12-16 08:14:02,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526795057] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:02,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:02,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:14:02,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162715082] [2023-12-16 08:14:02,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:02,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:14:02,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:02,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:14:02,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:14:02,526 INFO L87 Difference]: Start difference. First operand 26909 states and 35722 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:03,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:03,871 INFO L93 Difference]: Finished difference Result 27211 states and 36212 transitions. [2023-12-16 08:14:03,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:14:03,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-16 08:14:03,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:03,994 INFO L225 Difference]: With dead ends: 27211 [2023-12-16 08:14:03,994 INFO L226 Difference]: Without dead ends: 26909 [2023-12-16 08:14:04,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:14:04,013 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 491 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:04,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 727 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:14:04,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26909 states. [2023-12-16 08:14:05,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26909 to 26909. [2023-12-16 08:14:05,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26909 states, 20921 states have (on average 1.2897567037904498) internal successors, (26983), 21405 states have internal predecessors, (26983), 2868 states have call successors, (2868), 1960 states have call predecessors, (2868), 3118 states have return successors, (5870), 3544 states have call predecessors, (5870), 2864 states have call successors, (5870) [2023-12-16 08:14:05,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26909 states to 26909 states and 35721 transitions. [2023-12-16 08:14:05,607 INFO L78 Accepts]: Start accepts. Automaton has 26909 states and 35721 transitions. Word has length 142 [2023-12-16 08:14:05,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:05,608 INFO L495 AbstractCegarLoop]: Abstraction has 26909 states and 35721 transitions. [2023-12-16 08:14:05,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:05,608 INFO L276 IsEmpty]: Start isEmpty. Operand 26909 states and 35721 transitions. [2023-12-16 08:14:05,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 08:14:05,624 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:05,624 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] [2023-12-16 08:14:05,636 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 08:14:05,836 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 08:14:05,836 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:05,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:05,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1104790916, now seen corresponding path program 1 times [2023-12-16 08:14:05,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:05,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672071039] [2023-12-16 08:14:05,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:05,838 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 08:14:05,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:05,839 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 08:14:05,873 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 08:14:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:06,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:14:06,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:06,039 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 08:14:06,039 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:06,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:06,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672071039] [2023-12-16 08:14:06,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672071039] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:06,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:06,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:14:06,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042057212] [2023-12-16 08:14:06,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:06,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:14:06,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:06,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:14:06,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:14:06,042 INFO L87 Difference]: Start difference. First operand 26909 states and 35721 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:07,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:07,237 INFO L93 Difference]: Finished difference Result 27203 states and 36195 transitions. [2023-12-16 08:14:07,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:14:07,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-16 08:14:07,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:07,411 INFO L225 Difference]: With dead ends: 27203 [2023-12-16 08:14:07,411 INFO L226 Difference]: Without dead ends: 26909 [2023-12-16 08:14:07,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:14:07,424 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 482 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:07,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 726 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:14:07,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26909 states. [2023-12-16 08:14:08,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26909 to 26909. [2023-12-16 08:14:08,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26909 states, 20921 states have (on average 1.2897089049280628) internal successors, (26982), 21405 states have internal predecessors, (26982), 2868 states have call successors, (2868), 1960 states have call predecessors, (2868), 3118 states have return successors, (5870), 3544 states have call predecessors, (5870), 2864 states have call successors, (5870) [2023-12-16 08:14:08,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26909 states to 26909 states and 35720 transitions. [2023-12-16 08:14:08,877 INFO L78 Accepts]: Start accepts. Automaton has 26909 states and 35720 transitions. Word has length 142 [2023-12-16 08:14:08,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:08,877 INFO L495 AbstractCegarLoop]: Abstraction has 26909 states and 35720 transitions. [2023-12-16 08:14:08,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:08,878 INFO L276 IsEmpty]: Start isEmpty. Operand 26909 states and 35720 transitions. [2023-12-16 08:14:08,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 08:14:08,892 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:08,893 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] [2023-12-16 08:14:08,901 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 08:14:09,098 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 08:14:09,098 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:09,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:09,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1539296514, now seen corresponding path program 1 times [2023-12-16 08:14:09,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:09,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49714404] [2023-12-16 08:14:09,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:09,100 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 08:14:09,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:09,101 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 08:14:09,104 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 08:14:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:09,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:09,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:09,335 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 08:14:09,335 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:09,335 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:09,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49714404] [2023-12-16 08:14:09,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49714404] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:09,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:09,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:09,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001959934] [2023-12-16 08:14:09,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:09,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:09,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:09,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:09,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:09,337 INFO L87 Difference]: Start difference. First operand 26909 states and 35720 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:11,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:11,320 INFO L93 Difference]: Finished difference Result 27532 states and 36741 transitions. [2023-12-16 08:14:11,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:14:11,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-16 08:14:11,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:11,427 INFO L225 Difference]: With dead ends: 27532 [2023-12-16 08:14:11,427 INFO L226 Difference]: Without dead ends: 27241 [2023-12-16 08:14:11,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 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 08:14:11,446 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 1127 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 1457 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:11,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 1457 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:14:11,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27241 states. [2023-12-16 08:14:13,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27241 to 27214. [2023-12-16 08:14:13,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27214 states, 21200 states have (on average 1.294433962264151) internal successors, (27442), 21685 states have internal predecessors, (27442), 2887 states have call successors, (2887), 1966 states have call predecessors, (2887), 3125 states have return successors, (5890), 3563 states have call predecessors, (5890), 2883 states have call successors, (5890) [2023-12-16 08:14:13,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27214 states to 27214 states and 36219 transitions. [2023-12-16 08:14:13,125 INFO L78 Accepts]: Start accepts. Automaton has 27214 states and 36219 transitions. Word has length 142 [2023-12-16 08:14:13,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:13,125 INFO L495 AbstractCegarLoop]: Abstraction has 27214 states and 36219 transitions. [2023-12-16 08:14:13,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:13,125 INFO L276 IsEmpty]: Start isEmpty. Operand 27214 states and 36219 transitions. [2023-12-16 08:14:13,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 08:14:13,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:13,139 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] [2023-12-16 08:14:13,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-16 08:14:13,344 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 08:14:13,344 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:13,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:13,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1029322818, now seen corresponding path program 1 times [2023-12-16 08:14:13,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:13,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090367408] [2023-12-16 08:14:13,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:13,346 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 08:14:13,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:13,347 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 08:14:13,348 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 08:14:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:13,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:13,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:13,552 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 08:14:13,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:13,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:13,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090367408] [2023-12-16 08:14:13,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090367408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:13,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:13,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:13,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813216972] [2023-12-16 08:14:13,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:13,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:13,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:13,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:13,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:13,556 INFO L87 Difference]: Start difference. First operand 27214 states and 36219 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:15,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:15,529 INFO L93 Difference]: Finished difference Result 27810 states and 37194 transitions. [2023-12-16 08:14:15,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:15,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-16 08:14:15,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:15,635 INFO L225 Difference]: With dead ends: 27810 [2023-12-16 08:14:15,635 INFO L226 Difference]: Without dead ends: 27214 [2023-12-16 08:14:15,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 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 08:14:15,649 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 849 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:15,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 976 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:14:15,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27214 states. [2023-12-16 08:14:17,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27214 to 27214. [2023-12-16 08:14:17,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27214 states, 21200 states have (on average 1.2941037735849057) internal successors, (27435), 21685 states have internal predecessors, (27435), 2887 states have call successors, (2887), 1966 states have call predecessors, (2887), 3125 states have return successors, (5890), 3563 states have call predecessors, (5890), 2883 states have call successors, (5890) [2023-12-16 08:14:17,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27214 states to 27214 states and 36212 transitions. [2023-12-16 08:14:17,443 INFO L78 Accepts]: Start accepts. Automaton has 27214 states and 36212 transitions. Word has length 142 [2023-12-16 08:14:17,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:17,443 INFO L495 AbstractCegarLoop]: Abstraction has 27214 states and 36212 transitions. [2023-12-16 08:14:17,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:17,443 INFO L276 IsEmpty]: Start isEmpty. Operand 27214 states and 36212 transitions. [2023-12-16 08:14:17,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 08:14:17,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:17,456 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] [2023-12-16 08:14:17,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-16 08:14:17,662 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 08:14:17,662 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:17,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:17,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1428514050, now seen corresponding path program 1 times [2023-12-16 08:14:17,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:17,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990060760] [2023-12-16 08:14:17,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:17,663 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:14:17,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:17,664 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 08:14:17,668 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 08:14:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:17,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:17,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:17,891 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 08:14:17,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:17,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:17,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990060760] [2023-12-16 08:14:17,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990060760] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:17,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:17,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:17,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018784948] [2023-12-16 08:14:17,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:17,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:17,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:17,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:17,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:17,894 INFO L87 Difference]: Start difference. First operand 27214 states and 36212 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:19,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:19,772 INFO L93 Difference]: Finished difference Result 27810 states and 37180 transitions. [2023-12-16 08:14:19,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:19,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-16 08:14:19,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:19,894 INFO L225 Difference]: With dead ends: 27810 [2023-12-16 08:14:19,894 INFO L226 Difference]: Without dead ends: 27214 [2023-12-16 08:14:19,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 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 08:14:19,913 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 843 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:19,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 969 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:14:19,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27214 states. [2023-12-16 08:14:21,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27214 to 27214. [2023-12-16 08:14:21,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27214 states, 21200 states have (on average 1.2937735849056604) internal successors, (27428), 21685 states have internal predecessors, (27428), 2887 states have call successors, (2887), 1966 states have call predecessors, (2887), 3125 states have return successors, (5890), 3563 states have call predecessors, (5890), 2883 states have call successors, (5890) [2023-12-16 08:14:21,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27214 states to 27214 states and 36205 transitions. [2023-12-16 08:14:21,799 INFO L78 Accepts]: Start accepts. Automaton has 27214 states and 36205 transitions. Word has length 142 [2023-12-16 08:14:21,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:21,799 INFO L495 AbstractCegarLoop]: Abstraction has 27214 states and 36205 transitions. [2023-12-16 08:14:21,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:21,800 INFO L276 IsEmpty]: Start isEmpty. Operand 27214 states and 36205 transitions. [2023-12-16 08:14:21,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 08:14:21,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:21,808 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] [2023-12-16 08:14:21,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 08:14:22,012 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 08:14:22,012 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:22,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:22,013 INFO L85 PathProgramCache]: Analyzing trace with hash 887201858, now seen corresponding path program 1 times [2023-12-16 08:14:22,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:22,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264974544] [2023-12-16 08:14:22,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:22,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:14:22,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:22,014 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 08:14:22,015 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 08:14:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:22,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:22,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:22,238 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 08:14:22,238 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:22,238 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:22,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264974544] [2023-12-16 08:14:22,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1264974544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:22,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:22,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:22,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797597755] [2023-12-16 08:14:22,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:22,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:22,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:22,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:22,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:22,240 INFO L87 Difference]: Start difference. First operand 27214 states and 36205 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:24,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:24,080 INFO L93 Difference]: Finished difference Result 27810 states and 37166 transitions. [2023-12-16 08:14:24,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:24,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-16 08:14:24,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:24,180 INFO L225 Difference]: With dead ends: 27810 [2023-12-16 08:14:24,180 INFO L226 Difference]: Without dead ends: 27214 [2023-12-16 08:14:24,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 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 08:14:24,200 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 837 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:24,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 962 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:14:24,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27214 states. [2023-12-16 08:14:26,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27214 to 27214. [2023-12-16 08:14:26,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27214 states, 21200 states have (on average 1.2934433962264151) internal successors, (27421), 21685 states have internal predecessors, (27421), 2887 states have call successors, (2887), 1966 states have call predecessors, (2887), 3125 states have return successors, (5890), 3563 states have call predecessors, (5890), 2883 states have call successors, (5890) [2023-12-16 08:14:26,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27214 states to 27214 states and 36198 transitions. [2023-12-16 08:14:26,322 INFO L78 Accepts]: Start accepts. Automaton has 27214 states and 36198 transitions. Word has length 142 [2023-12-16 08:14:26,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:26,322 INFO L495 AbstractCegarLoop]: Abstraction has 27214 states and 36198 transitions. [2023-12-16 08:14:26,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:26,322 INFO L276 IsEmpty]: Start isEmpty. Operand 27214 states and 36198 transitions. [2023-12-16 08:14:26,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 08:14:26,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:26,333 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] [2023-12-16 08:14:26,338 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 08:14:26,534 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 08:14:26,534 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:26,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:26,535 INFO L85 PathProgramCache]: Analyzing trace with hash 454098178, now seen corresponding path program 1 times [2023-12-16 08:14:26,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:26,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910268889] [2023-12-16 08:14:26,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:26,536 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 08:14:26,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:26,537 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 08:14:26,538 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 08:14:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:26,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:26,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:26,813 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 08:14:26,813 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:26,813 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:26,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910268889] [2023-12-16 08:14:26,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [910268889] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:26,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:26,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:26,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709408562] [2023-12-16 08:14:26,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:26,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:26,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:26,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:26,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:26,814 INFO L87 Difference]: Start difference. First operand 27214 states and 36198 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:28,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:28,794 INFO L93 Difference]: Finished difference Result 27810 states and 37152 transitions. [2023-12-16 08:14:28,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:28,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-16 08:14:28,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:28,873 INFO L225 Difference]: With dead ends: 27810 [2023-12-16 08:14:28,874 INFO L226 Difference]: Without dead ends: 27214 [2023-12-16 08:14:28,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 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 08:14:28,893 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 831 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:28,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 955 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:14:28,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27214 states. [2023-12-16 08:14:30,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27214 to 27214. [2023-12-16 08:14:30,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27214 states, 21200 states have (on average 1.2931132075471699) internal successors, (27414), 21685 states have internal predecessors, (27414), 2887 states have call successors, (2887), 1966 states have call predecessors, (2887), 3125 states have return successors, (5890), 3563 states have call predecessors, (5890), 2883 states have call successors, (5890) [2023-12-16 08:14:30,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27214 states to 27214 states and 36191 transitions. [2023-12-16 08:14:30,817 INFO L78 Accepts]: Start accepts. Automaton has 27214 states and 36191 transitions. Word has length 142 [2023-12-16 08:14:30,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:30,817 INFO L495 AbstractCegarLoop]: Abstraction has 27214 states and 36191 transitions. [2023-12-16 08:14:30,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:30,818 INFO L276 IsEmpty]: Start isEmpty. Operand 27214 states and 36191 transitions. [2023-12-16 08:14:30,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 08:14:30,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:30,826 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] [2023-12-16 08:14:30,836 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 (22)] Ended with exit code 0 [2023-12-16 08:14:31,031 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 08:14:31,032 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:31,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:31,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1222440894, now seen corresponding path program 1 times [2023-12-16 08:14:31,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:31,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713998669] [2023-12-16 08:14:31,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:31,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:14:31,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:31,034 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 08:14:31,035 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 08:14:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:31,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:31,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:31,260 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 08:14:31,261 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:31,261 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:31,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713998669] [2023-12-16 08:14:31,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1713998669] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:31,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:31,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:31,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750487239] [2023-12-16 08:14:31,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:31,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:31,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:31,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:31,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:31,263 INFO L87 Difference]: Start difference. First operand 27214 states and 36191 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:14:33,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:33,477 INFO L93 Difference]: Finished difference Result 27810 states and 37138 transitions. [2023-12-16 08:14:33,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:33,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2023-12-16 08:14:33,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:33,563 INFO L225 Difference]: With dead ends: 27810 [2023-12-16 08:14:33,564 INFO L226 Difference]: Without dead ends: 27214 [2023-12-16 08:14:33,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 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 08:14:33,578 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 825 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:33,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 948 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:14:33,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27214 states. Received shutdown request... [2023-12-16 08:14:34,585 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 08:14:34,591 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 (23)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:14:35,598 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 08:14:35,599 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 08:14:35,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27214 to 27214. [2023-12-16 08:14:35,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27214 states, 21200 states have (on average 1.2927830188679246) internal successors, (27407), 21685 states have internal predecessors, (27407), 2887 states have call successors, (2887), 1966 states have call predecessors, (2887), 3125 states have return successors, (5890), 3563 states have call predecessors, (5890), 2883 states have call successors, (5890) [2023-12-16 08:14:35,631 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 08:14:35,632 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 08:14:35,634 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 08:14:35,636 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] [2023-12-16 08:14:35,639 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:14:35,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:14:35 BoogieIcfgContainer [2023-12-16 08:14:35,641 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:14:35,641 INFO L158 Benchmark]: Toolchain (without parser) took 54240.10ms. Allocated memory was 386.9MB in the beginning and 5.5GB in the end (delta: 5.1GB). Free memory was 323.6MB in the beginning and 4.5GB in the end (delta: -4.2GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2023-12-16 08:14:35,641 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 217.1MB. Free memory is still 166.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:14:35,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.21ms. Allocated memory is still 386.9MB. Free memory was 323.3MB in the beginning and 295.6MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-16 08:14:35,642 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.92ms. Allocated memory is still 386.9MB. Free memory was 295.6MB in the beginning and 291.2MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 08:14:35,642 INFO L158 Benchmark]: Boogie Preprocessor took 135.46ms. Allocated memory is still 386.9MB. Free memory was 291.2MB in the beginning and 349.3MB in the end (delta: -58.2MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB. [2023-12-16 08:14:35,642 INFO L158 Benchmark]: RCFGBuilder took 1183.64ms. Allocated memory is still 386.9MB. Free memory was 349.3MB in the beginning and 270.2MB in the end (delta: 79.2MB). Peak memory consumption was 79.7MB. Max. memory is 8.0GB. [2023-12-16 08:14:35,642 INFO L158 Benchmark]: TraceAbstraction took 52353.28ms. Allocated memory was 386.9MB in the beginning and 5.5GB in the end (delta: 5.1GB). Free memory was 269.1MB in the beginning and 4.5GB in the end (delta: -4.3GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-12-16 08:14:35,643 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 217.1MB. Free memory is still 166.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 478.21ms. Allocated memory is still 386.9MB. Free memory was 323.3MB in the beginning and 295.6MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 82.92ms. Allocated memory is still 386.9MB. Free memory was 295.6MB in the beginning and 291.2MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 135.46ms. Allocated memory is still 386.9MB. Free memory was 291.2MB in the beginning and 349.3MB in the end (delta: -58.2MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB. * RCFGBuilder took 1183.64ms. Allocated memory is still 386.9MB. Free memory was 349.3MB in the beginning and 270.2MB in the end (delta: 79.2MB). Peak memory consumption was 79.7MB. Max. memory is 8.0GB. * TraceAbstraction took 52353.28ms. Allocated memory was 386.9MB in the beginning and 5.5GB in the end (delta: 5.1GB). Free memory was 269.1MB in the beginning and 4.5GB in the end (delta: -4.3GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 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 16 procedures, 414 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 52.3s, OverallIterations: 22, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 24.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10949 SdHoareTripleChecker+Valid, 7.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10683 mSDsluCounter, 28009 SdHoareTripleChecker+Invalid, 6.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17037 mSDsCounter, 648 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9001 IncrementalHoareTripleChecker+Invalid, 9649 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 648 mSolverCounterUnsat, 10972 mSDtfsCounter, 9001 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2489 GetRequests, 2423 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27214occurred in iteration=17, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 18.9s AutomataMinimizationTime, 22 MinimizatonAttempts, 716 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 2494 NumberOfCodeBlocks, 2494 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2472 ConstructedInterpolants, 0 QuantifiedInterpolants, 3748 SizeOfPredicates, 5 NumberOfNonLiveVariables, 7090 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 564/564 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown