/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_2.cil-1+token_ring.12.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:11:33,921 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:11:34,020 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 08:11:34,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:11:34,025 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:11:34,053 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:11:34,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:11:34,055 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:11:34,055 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:11:34,060 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:11:34,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:11:34,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:11:34,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:11:34,063 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:11:34,063 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:11:34,064 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:11:34,064 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:11:34,064 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:11:34,064 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:11:34,065 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:11:34,066 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:11:34,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:11:34,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:11:34,067 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:11:34,067 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:11:34,067 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:11:34,067 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:11:34,067 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:11:34,068 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:11:34,068 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:11:34,069 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:11:34,069 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:11:34,069 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:11:34,069 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:11:34,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:11:34,070 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:11:34,070 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:11:34,070 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:11:34,070 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:11:34,070 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:11:34,071 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:11:34,071 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:11:34,071 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:11:34,071 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:11:34,072 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:11:34,072 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:11:34,072 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:11:34,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:11:34,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:11:34,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:11:34,346 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:11:34,347 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:11:34,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c [2023-12-16 08:11:35,525 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:11:35,765 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:11:35,766 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c [2023-12-16 08:11:35,787 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b82bae314/dc2e2c4c48024b9da9ccddd595cdfcc1/FLAG70cde3e59 [2023-12-16 08:11:35,802 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b82bae314/dc2e2c4c48024b9da9ccddd595cdfcc1 [2023-12-16 08:11:35,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:11:35,806 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:11:35,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:11:35,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:11:35,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:11:35,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:11:35" (1/1) ... [2023-12-16 08:11:35,816 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31cae723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:11:35, skipping insertion in model container [2023-12-16 08:11:35,817 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:11:35" (1/1) ... [2023-12-16 08:11:35,875 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:11:36,049 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_2.cil-1+token_ring.12.cil-2.c[914,927] [2023-12-16 08:11:36,134 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_2.cil-1+token_ring.12.cil-2.c[7115,7128] [2023-12-16 08:11:36,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:11:36,296 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:11:36,310 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_2.cil-1+token_ring.12.cil-2.c[914,927] [2023-12-16 08:11:36,342 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_2.cil-1+token_ring.12.cil-2.c[7115,7128] [2023-12-16 08:11:36,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:11:36,413 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:11:36,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:11:36 WrapperNode [2023-12-16 08:11:36,415 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:11:36,416 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:11:36,416 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:11:36,416 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:11:36,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:11:36" (1/1) ... [2023-12-16 08:11:36,443 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:11:36" (1/1) ... [2023-12-16 08:11:36,512 INFO L138 Inliner]: procedures = 78, calls = 93, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 1029 [2023-12-16 08:11:36,513 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:11:36,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:11:36,513 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:11:36,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:11:36,534 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:11:36" (1/1) ... [2023-12-16 08:11:36,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:11:36" (1/1) ... [2023-12-16 08:11:36,541 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:11:36" (1/1) ... [2023-12-16 08:11:36,568 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 08:11:36,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:11:36" (1/1) ... [2023-12-16 08:11:36,569 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:11:36" (1/1) ... [2023-12-16 08:11:36,594 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:11:36" (1/1) ... [2023-12-16 08:11:36,625 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:11:36" (1/1) ... [2023-12-16 08:11:36,630 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:11:36" (1/1) ... [2023-12-16 08:11:36,633 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:11:36" (1/1) ... [2023-12-16 08:11:36,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:11:36,671 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:11:36,671 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:11:36,671 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:11:36,672 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:11:36" (1/1) ... [2023-12-16 08:11:36,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:11:36,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:11:36,721 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 08:11:36,750 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 08:11:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:11:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 08:11:36,763 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 08:11:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-16 08:11:36,763 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-16 08:11:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-16 08:11:36,764 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-16 08:11:36,764 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-16 08:11:36,764 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-16 08:11:36,764 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-16 08:11:36,764 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-16 08:11:36,764 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-16 08:11:36,764 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-16 08:11:36,764 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-16 08:11:36,764 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-16 08:11:36,765 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-16 08:11:36,765 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-16 08:11:36,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:11:36,765 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-16 08:11:36,766 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-16 08:11:36,766 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-16 08:11:36,766 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-16 08:11:36,766 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-16 08:11:36,768 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-16 08:11:36,768 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-16 08:11:36,768 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-16 08:11:36,768 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-16 08:11:36,768 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-16 08:11:36,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:11:36,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:11:36,768 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-16 08:11:36,769 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-16 08:11:36,926 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:11:36,929 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:11:37,808 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:11:37,890 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:11:37,891 INFO L309 CfgBuilder]: Removed 19 assume(true) statements. [2023-12-16 08:11:37,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:11:37 BoogieIcfgContainer [2023-12-16 08:11:37,891 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:11:37,894 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:11:37,894 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:11:37,897 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:11:37,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:11:35" (1/3) ... [2023-12-16 08:11:37,898 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d99da6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:11:37, skipping insertion in model container [2023-12-16 08:11:37,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:11:36" (2/3) ... [2023-12-16 08:11:37,898 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d99da6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:11:37, skipping insertion in model container [2023-12-16 08:11:37,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:11:37" (3/3) ... [2023-12-16 08:11:37,900 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.12.cil-2.c [2023-12-16 08:11:37,912 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:11:37,913 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 08:11:37,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:11:37,981 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;@5ccee73d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:11:37,981 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 08:11:37,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 439 states, 382 states have (on average 1.7146596858638743) internal successors, (655), 388 states have internal predecessors, (655), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 08:11:38,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:11:38,005 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:38,006 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 08:11:38,006 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:38,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:38,011 INFO L85 PathProgramCache]: Analyzing trace with hash 204893055, now seen corresponding path program 1 times [2023-12-16 08:11:38,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:38,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552040829] [2023-12-16 08:11:38,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:38,021 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 08:11:38,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:38,023 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 08:11:38,024 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 08:11:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:38,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 08:11:38,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:38,352 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 08:11:38,353 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:38,353 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:38,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552040829] [2023-12-16 08:11:38,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552040829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:38,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:38,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 08:11:38,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996841136] [2023-12-16 08:11:38,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:38,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:11:38,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:38,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:11:38,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:11:38,399 INFO L87 Difference]: Start difference. First operand has 439 states, 382 states have (on average 1.7146596858638743) internal successors, (655), 388 states have internal predecessors, (655), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 5 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), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:11:39,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:39,647 INFO L93 Difference]: Finished difference Result 948 states and 1577 transitions. [2023-12-16 08:11:39,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:11:39,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 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), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-16 08:11:39,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:39,676 INFO L225 Difference]: With dead ends: 948 [2023-12-16 08:11:39,677 INFO L226 Difference]: Without dead ends: 529 [2023-12-16 08:11:39,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 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 08:11:39,687 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 449 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:39,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 1283 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 08:11:39,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-12-16 08:11:39,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 522. [2023-12-16 08:11:39,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 447 states have (on average 1.58165548098434) internal successors, (707), 453 states have internal predecessors, (707), 51 states have call successors, (51), 21 states have call predecessors, (51), 22 states have return successors, (54), 50 states have call predecessors, (54), 49 states have call successors, (54) [2023-12-16 08:11:39,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 812 transitions. [2023-12-16 08:11:39,771 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 812 transitions. Word has length 58 [2023-12-16 08:11:39,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:39,771 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 812 transitions. [2023-12-16 08:11:39,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 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), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:11:39,772 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 812 transitions. [2023-12-16 08:11:39,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:11:39,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:39,775 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 08:11:39,784 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 08:11:39,980 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 08:11:39,981 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:39,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:39,982 INFO L85 PathProgramCache]: Analyzing trace with hash -886268992, now seen corresponding path program 1 times [2023-12-16 08:11:39,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:39,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1275081238] [2023-12-16 08:11:39,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:39,983 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 08:11:39,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:39,986 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 08:11:39,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 08:11:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:40,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:11:40,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:40,184 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 08:11:40,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:40,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:40,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1275081238] [2023-12-16 08:11:40,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1275081238] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:40,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:40,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 08:11:40,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763414249] [2023-12-16 08:11:40,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:40,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:11:40,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:40,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:11:40,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:11:40,188 INFO L87 Difference]: Start difference. First operand 522 states and 812 transitions. Second operand has 5 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), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:11:41,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:41,243 INFO L93 Difference]: Finished difference Result 881 states and 1333 transitions. [2023-12-16 08:11:41,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:11:41,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 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), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-16 08:11:41,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:41,250 INFO L225 Difference]: With dead ends: 881 [2023-12-16 08:11:41,250 INFO L226 Difference]: Without dead ends: 717 [2023-12-16 08:11:41,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 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 08:11:41,253 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 438 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:41,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 1279 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1185 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 08:11:41,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2023-12-16 08:11:41,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 709. [2023-12-16 08:11:41,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 590 states have (on average 1.5338983050847457) internal successors, (905), 604 states have internal predecessors, (905), 73 states have call successors, (73), 35 states have call predecessors, (73), 44 states have return successors, (96), 74 states have call predecessors, (96), 71 states have call successors, (96) [2023-12-16 08:11:41,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 1074 transitions. [2023-12-16 08:11:41,303 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 1074 transitions. Word has length 58 [2023-12-16 08:11:41,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:41,304 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 1074 transitions. [2023-12-16 08:11:41,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 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), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:11:41,304 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 1074 transitions. [2023-12-16 08:11:41,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:11:41,308 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:41,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:11:41,312 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 08:11:41,512 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 08:11:41,512 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:41,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:41,513 INFO L85 PathProgramCache]: Analyzing trace with hash -306765439, now seen corresponding path program 1 times [2023-12-16 08:11:41,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:41,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246546787] [2023-12-16 08:11:41,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:41,514 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:11:41,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:41,515 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 08:11:41,516 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 08:11:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:41,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:11:41,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:41,653 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 08:11:41,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:41,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:41,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246546787] [2023-12-16 08:11:41,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246546787] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:41,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:41,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:11:41,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356671583] [2023-12-16 08:11:41,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:41,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:11:41,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:41,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:11:41,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:11:41,656 INFO L87 Difference]: Start difference. First operand 709 states and 1074 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 08:11:41,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:41,884 INFO L93 Difference]: Finished difference Result 1064 states and 1571 transitions. [2023-12-16 08:11:41,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:11:41,884 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 08:11:41,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:41,895 INFO L225 Difference]: With dead ends: 1064 [2023-12-16 08:11:41,895 INFO L226 Difference]: Without dead ends: 727 [2023-12-16 08:11:41,896 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 08:11:41,900 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 6 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3165 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:41,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3165 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 08:11:41,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2023-12-16 08:11:41,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 717. [2023-12-16 08:11:41,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 596 states have (on average 1.5251677852348993) internal successors, (909), 610 states have internal predecessors, (909), 73 states have call successors, (73), 35 states have call predecessors, (73), 46 states have return successors, (98), 76 states have call predecessors, (98), 71 states have call successors, (98) [2023-12-16 08:11:41,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1080 transitions. [2023-12-16 08:11:41,947 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1080 transitions. Word has length 58 [2023-12-16 08:11:41,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:41,947 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 1080 transitions. [2023-12-16 08:11:41,947 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 08:11:41,947 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1080 transitions. [2023-12-16 08:11:41,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:11:41,950 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:41,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:11:41,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:42,154 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 08:11:42,155 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:42,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:42,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1744218559, now seen corresponding path program 1 times [2023-12-16 08:11:42,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:42,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1059339520] [2023-12-16 08:11:42,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:42,157 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 08:11:42,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:42,158 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 08:11:42,190 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 08:11:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:42,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:11:42,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:42,303 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 08:11:42,304 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:42,304 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:42,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1059339520] [2023-12-16 08:11:42,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1059339520] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:42,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:42,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:11:42,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19020219] [2023-12-16 08:11:42,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:42,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:11:42,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:42,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:11:42,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:11:42,306 INFO L87 Difference]: Start difference. First operand 717 states and 1080 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 08:11:42,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:42,524 INFO L93 Difference]: Finished difference Result 1074 states and 1573 transitions. [2023-12-16 08:11:42,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:11:42,528 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 08:11:42,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:42,534 INFO L225 Difference]: With dead ends: 1074 [2023-12-16 08:11:42,534 INFO L226 Difference]: Without dead ends: 729 [2023-12-16 08:11:42,536 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 08:11:42,537 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 3 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3165 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:42,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3165 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 08:11:42,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2023-12-16 08:11:42,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 725. [2023-12-16 08:11:42,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 602 states have (on average 1.5166112956810631) internal successors, (913), 616 states have internal predecessors, (913), 73 states have call successors, (73), 35 states have call predecessors, (73), 48 states have return successors, (100), 78 states have call predecessors, (100), 71 states have call successors, (100) [2023-12-16 08:11:42,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 1086 transitions. [2023-12-16 08:11:42,630 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 1086 transitions. Word has length 58 [2023-12-16 08:11:42,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:42,631 INFO L495 AbstractCegarLoop]: Abstraction has 725 states and 1086 transitions. [2023-12-16 08:11:42,631 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 08:11:42,632 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 1086 transitions. [2023-12-16 08:11:42,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:11:42,635 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:42,635 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 08:11:42,643 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 08:11:42,840 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 08:11:42,840 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:42,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:42,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1806258173, now seen corresponding path program 1 times [2023-12-16 08:11:42,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:42,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [411785408] [2023-12-16 08:11:42,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:42,842 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 08:11:42,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:42,843 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 08:11:42,848 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 08:11:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:42,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:42,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:43,014 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 08:11:43,015 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:43,015 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:43,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [411785408] [2023-12-16 08:11:43,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [411785408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:43,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:43,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:43,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743545539] [2023-12-16 08:11:43,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:43,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:11:43,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:43,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:11:43,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:43,017 INFO L87 Difference]: Start difference. First operand 725 states and 1086 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 08:11:43,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:43,724 INFO L93 Difference]: Finished difference Result 1423 states and 2033 transitions. [2023-12-16 08:11:43,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:11:43,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 58 [2023-12-16 08:11:43,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:43,731 INFO L225 Difference]: With dead ends: 1423 [2023-12-16 08:11:43,731 INFO L226 Difference]: Without dead ends: 1074 [2023-12-16 08:11:43,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 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 08:11:43,733 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 948 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:43,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 664 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 08:11:43,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2023-12-16 08:11:43,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 1070. [2023-12-16 08:11:43,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 857 states have (on average 1.456242707117853) internal successors, (1248), 886 states have internal predecessors, (1248), 119 states have call successors, (119), 63 states have call predecessors, (119), 92 states have return successors, (185), 129 states have call predecessors, (185), 117 states have call successors, (185) [2023-12-16 08:11:43,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1552 transitions. [2023-12-16 08:11:43,804 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1552 transitions. Word has length 58 [2023-12-16 08:11:43,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:43,805 INFO L495 AbstractCegarLoop]: Abstraction has 1070 states and 1552 transitions. [2023-12-16 08:11:43,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 08:11:43,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1552 transitions. [2023-12-16 08:11:43,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 08:11:43,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:43,809 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] [2023-12-16 08:11:43,816 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 08:11:44,013 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 08:11:44,014 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:44,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:44,015 INFO L85 PathProgramCache]: Analyzing trace with hash -952480253, now seen corresponding path program 1 times [2023-12-16 08:11:44,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:44,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019352484] [2023-12-16 08:11:44,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:44,015 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 08:11:44,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:44,016 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 08:11:44,017 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 08:11:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:44,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:11:44,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:44,183 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 08:11:44,183 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:44,183 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:44,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019352484] [2023-12-16 08:11:44,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019352484] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:44,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:44,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:11:44,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880942472] [2023-12-16 08:11:44,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:44,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:11:44,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:44,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:11:44,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:11:44,185 INFO L87 Difference]: Start difference. First operand 1070 states and 1552 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:11:44,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:44,365 INFO L93 Difference]: Finished difference Result 2384 states and 3323 transitions. [2023-12-16 08:11:44,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:11:44,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 59 [2023-12-16 08:11:44,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:44,373 INFO L225 Difference]: With dead ends: 2384 [2023-12-16 08:11:44,373 INFO L226 Difference]: Without dead ends: 1702 [2023-12-16 08:11:44,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 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 08:11:44,376 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 626 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:44,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 741 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:44,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2023-12-16 08:11:44,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1658. [2023-12-16 08:11:44,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1658 states, 1297 states have (on average 1.3955281418658443) internal successors, (1810), 1348 states have internal predecessors, (1810), 185 states have call successors, (185), 119 states have call predecessors, (185), 174 states have return successors, (299), 199 states have call predecessors, (299), 183 states have call successors, (299) [2023-12-16 08:11:44,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1658 states to 1658 states and 2294 transitions. [2023-12-16 08:11:44,469 INFO L78 Accepts]: Start accepts. Automaton has 1658 states and 2294 transitions. Word has length 59 [2023-12-16 08:11:44,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:44,469 INFO L495 AbstractCegarLoop]: Abstraction has 1658 states and 2294 transitions. [2023-12-16 08:11:44,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:11:44,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1658 states and 2294 transitions. [2023-12-16 08:11:44,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 08:11:44,472 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:44,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:11:44,477 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 08:11:44,676 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 08:11:44,677 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:44,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:44,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1349667701, now seen corresponding path program 1 times [2023-12-16 08:11:44,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:44,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714912740] [2023-12-16 08:11:44,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:44,678 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 08:11:44,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:44,680 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 08:11:44,715 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 08:11:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:44,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:11:44,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:44,854 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 08:11:44,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:44,854 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:44,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1714912740] [2023-12-16 08:11:44,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1714912740] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:44,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:44,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:11:44,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725619611] [2023-12-16 08:11:44,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:44,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:11:44,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:44,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:11:44,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:11:44,856 INFO L87 Difference]: Start difference. First operand 1658 states and 2294 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:11:45,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:45,093 INFO L93 Difference]: Finished difference Result 4074 states and 5463 transitions. [2023-12-16 08:11:45,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:11:45,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 60 [2023-12-16 08:11:45,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:45,106 INFO L225 Difference]: With dead ends: 4074 [2023-12-16 08:11:45,106 INFO L226 Difference]: Without dead ends: 2776 [2023-12-16 08:11:45,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 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 08:11:45,112 INFO L413 NwaCegarLoop]: 633 mSDtfsCounter, 63 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:45,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 1237 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:45,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2776 states. [2023-12-16 08:11:45,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2776 to 2744. [2023-12-16 08:11:45,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2744 states, 2115 states have (on average 1.3479905437352246) internal successors, (2851), 2187 states have internal predecessors, (2851), 305 states have call successors, (305), 231 states have call predecessors, (305), 322 states have return successors, (477), 330 states have call predecessors, (477), 303 states have call successors, (477) [2023-12-16 08:11:45,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2744 states to 2744 states and 3633 transitions. [2023-12-16 08:11:45,359 INFO L78 Accepts]: Start accepts. Automaton has 2744 states and 3633 transitions. Word has length 60 [2023-12-16 08:11:45,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:45,361 INFO L495 AbstractCegarLoop]: Abstraction has 2744 states and 3633 transitions. [2023-12-16 08:11:45,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:11:45,368 INFO L276 IsEmpty]: Start isEmpty. Operand 2744 states and 3633 transitions. [2023-12-16 08:11:45,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 08:11:45,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:45,370 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] [2023-12-16 08:11:45,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-16 08:11:45,575 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 08:11:45,576 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:45,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:45,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1520239242, now seen corresponding path program 1 times [2023-12-16 08:11:45,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:45,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155838936] [2023-12-16 08:11:45,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:45,578 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 08:11:45,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:45,579 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 08:11:45,589 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 08:11:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:45,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:11:45,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:45,754 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 08:11:45,754 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:45,755 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:45,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155838936] [2023-12-16 08:11:45,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155838936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:45,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:45,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:11:45,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659422876] [2023-12-16 08:11:45,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:45,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:11:45,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:45,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:11:45,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:11:45,757 INFO L87 Difference]: Start difference. First operand 2744 states and 3633 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:11:45,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:45,994 INFO L93 Difference]: Finished difference Result 5680 states and 7371 transitions. [2023-12-16 08:11:45,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:11:45,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 66 [2023-12-16 08:11:45,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:46,012 INFO L225 Difference]: With dead ends: 5680 [2023-12-16 08:11:46,012 INFO L226 Difference]: Without dead ends: 3304 [2023-12-16 08:11:46,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 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 08:11:46,020 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 621 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:46,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 741 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:46,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3304 states. [2023-12-16 08:11:46,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3304 to 3260. [2023-12-16 08:11:46,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3260 states, 2503 states have (on average 1.3276068717538954) internal successors, (3323), 2583 states have internal predecessors, (3323), 369 states have call successors, (369), 287 states have call predecessors, (369), 386 states have return successors, (560), 394 states have call predecessors, (560), 367 states have call successors, (560) [2023-12-16 08:11:46,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3260 states to 3260 states and 4252 transitions. [2023-12-16 08:11:46,231 INFO L78 Accepts]: Start accepts. Automaton has 3260 states and 4252 transitions. Word has length 66 [2023-12-16 08:11:46,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:46,231 INFO L495 AbstractCegarLoop]: Abstraction has 3260 states and 4252 transitions. [2023-12-16 08:11:46,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:11:46,232 INFO L276 IsEmpty]: Start isEmpty. Operand 3260 states and 4252 transitions. [2023-12-16 08:11:46,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 08:11:46,233 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:46,233 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:46,240 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 08:11:46,438 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 08:11:46,438 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:46,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:46,439 INFO L85 PathProgramCache]: Analyzing trace with hash -634166033, now seen corresponding path program 1 times [2023-12-16 08:11:46,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:46,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989787217] [2023-12-16 08:11:46,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:46,439 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 08:11:46,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:46,441 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 08:11:46,452 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 08:11:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:46,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:46,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:46,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:11:46,570 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:46,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:46,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1989787217] [2023-12-16 08:11:46,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1989787217] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:46,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:46,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:46,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401016201] [2023-12-16 08:11:46,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:46,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:11:46,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:46,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:11:46,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:46,572 INFO L87 Difference]: Start difference. First operand 3260 states and 4252 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:11:47,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:47,033 INFO L93 Difference]: Finished difference Result 3880 states and 5025 transitions. [2023-12-16 08:11:47,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:11:47,034 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 67 [2023-12-16 08:11:47,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:47,051 INFO L225 Difference]: With dead ends: 3880 [2023-12-16 08:11:47,051 INFO L226 Difference]: Without dead ends: 3877 [2023-12-16 08:11:47,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 65 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 08:11:47,055 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 1273 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:47,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1273 Valid, 724 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 08:11:47,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3877 states. [2023-12-16 08:11:47,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3877 to 3843. [2023-12-16 08:11:47,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3843 states, 2941 states have (on average 1.3165589935396125) internal successors, (3872), 3035 states have internal predecessors, (3872), 434 states have call successors, (434), 343 states have call predecessors, (434), 466 states have return successors, (663), 469 states have call predecessors, (663), 433 states have call successors, (663) [2023-12-16 08:11:47,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3843 states to 3843 states and 4969 transitions. [2023-12-16 08:11:47,336 INFO L78 Accepts]: Start accepts. Automaton has 3843 states and 4969 transitions. Word has length 67 [2023-12-16 08:11:47,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:47,337 INFO L495 AbstractCegarLoop]: Abstraction has 3843 states and 4969 transitions. [2023-12-16 08:11:47,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:11:47,337 INFO L276 IsEmpty]: Start isEmpty. Operand 3843 states and 4969 transitions. [2023-12-16 08:11:47,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 08:11:47,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:47,339 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:47,346 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 08:11:47,543 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 08:11:47,543 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:47,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:47,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1814243188, now seen corresponding path program 1 times [2023-12-16 08:11:47,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:47,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002992728] [2023-12-16 08:11:47,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:47,544 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 08:11:47,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:47,545 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 08:11:47,547 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 08:11:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:47,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:11:47,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:47,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:11:47,907 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 08:11:48,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:11:48,021 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:48,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002992728] [2023-12-16 08:11:48,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002992728] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 08:11:48,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 08:11:48,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2023-12-16 08:11:48,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135917349] [2023-12-16 08:11:48,022 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 08:11:48,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 08:11:48,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:48,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 08:11:48,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-16 08:11:48,023 INFO L87 Difference]: Start difference. First operand 3843 states and 4969 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 08:11:49,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:49,147 INFO L93 Difference]: Finished difference Result 8382 states and 10725 transitions. [2023-12-16 08:11:49,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:11:49,148 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 68 [2023-12-16 08:11:49,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:49,193 INFO L225 Difference]: With dead ends: 8382 [2023-12-16 08:11:49,193 INFO L226 Difference]: Without dead ends: 8379 [2023-12-16 08:11:49,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-16 08:11:49,198 INFO L413 NwaCegarLoop]: 798 mSDtfsCounter, 1036 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 2922 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:49,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1036 Valid, 2922 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:11:49,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8379 states. [2023-12-16 08:11:49,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8379 to 6197. [2023-12-16 08:11:49,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6197 states, 4715 states have (on average 1.3047720042417816) internal successors, (6152), 4875 states have internal predecessors, (6152), 698 states have call successors, (698), 567 states have call predecessors, (698), 782 states have return successors, (1097), 759 states have call predecessors, (1097), 697 states have call successors, (1097) [2023-12-16 08:11:49,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6197 states to 6197 states and 7947 transitions. [2023-12-16 08:11:49,706 INFO L78 Accepts]: Start accepts. Automaton has 6197 states and 7947 transitions. Word has length 68 [2023-12-16 08:11:49,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:49,706 INFO L495 AbstractCegarLoop]: Abstraction has 6197 states and 7947 transitions. [2023-12-16 08:11:49,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 08:11:49,707 INFO L276 IsEmpty]: Start isEmpty. Operand 6197 states and 7947 transitions. [2023-12-16 08:11:49,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 08:11:49,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:49,709 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:11:49,719 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 08:11:49,913 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 08:11:49,913 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:49,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:49,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1384081233, now seen corresponding path program 2 times [2023-12-16 08:11:49,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:49,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249209759] [2023-12-16 08:11:49,914 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 08:11:49,914 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 08:11:49,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:49,916 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 08:11:49,919 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 08:11:50,017 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 08:11:50,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 08:11:50,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:11:50,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:50,029 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:11:50,030 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:50,030 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:50,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249209759] [2023-12-16 08:11:50,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249209759] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:50,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:50,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:11:50,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426559876] [2023-12-16 08:11:50,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:50,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:11:50,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:50,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:11:50,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:11:50,031 INFO L87 Difference]: Start difference. First operand 6197 states and 7947 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:11:50,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:50,399 INFO L93 Difference]: Finished difference Result 9168 states and 11803 transitions. [2023-12-16 08:11:50,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:11:50,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2023-12-16 08:11:50,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:50,417 INFO L225 Difference]: With dead ends: 9168 [2023-12-16 08:11:50,417 INFO L226 Difference]: Without dead ends: 3865 [2023-12-16 08:11:50,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 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 08:11:50,429 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 657 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:50,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 799 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:50,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3865 states. [2023-12-16 08:11:50,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3865 to 3841. [2023-12-16 08:11:50,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3841 states, 2943 states have (on average 1.3000339789330615) internal successors, (3826), 3033 states have internal predecessors, (3826), 434 states have call successors, (434), 343 states have call predecessors, (434), 462 states have return successors, (631), 469 states have call predecessors, (631), 433 states have call successors, (631) [2023-12-16 08:11:50,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3841 states to 3841 states and 4891 transitions. [2023-12-16 08:11:50,736 INFO L78 Accepts]: Start accepts. Automaton has 3841 states and 4891 transitions. Word has length 71 [2023-12-16 08:11:50,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:50,736 INFO L495 AbstractCegarLoop]: Abstraction has 3841 states and 4891 transitions. [2023-12-16 08:11:50,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:11:50,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3841 states and 4891 transitions. [2023-12-16 08:11:50,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-16 08:11:50,739 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:50,739 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, 1] [2023-12-16 08:11:50,749 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 08:11:50,949 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 08:11:50,950 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:50,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:50,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1923995982, now seen corresponding path program 1 times [2023-12-16 08:11:50,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:50,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022818499] [2023-12-16 08:11:50,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:50,951 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 08:11:50,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:50,953 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 08:11:50,984 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 08:11:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:51,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:11:51,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:51,081 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 08:11:51,081 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:51,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:51,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022818499] [2023-12-16 08:11:51,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2022818499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:51,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:51,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:11:51,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007727193] [2023-12-16 08:11:51,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:51,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:11:51,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:51,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:11:51,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:11:51,083 INFO L87 Difference]: Start difference. First operand 3841 states and 4891 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 08:11:51,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:51,659 INFO L93 Difference]: Finished difference Result 10278 states and 12850 transitions. [2023-12-16 08:11:51,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:11:51,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 76 [2023-12-16 08:11:51,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:51,693 INFO L225 Difference]: With dead ends: 10278 [2023-12-16 08:11:51,693 INFO L226 Difference]: Without dead ends: 5489 [2023-12-16 08:11:51,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 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 08:11:51,705 INFO L413 NwaCegarLoop]: 707 mSDtfsCounter, 84 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:51,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 1332 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:51,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5489 states. [2023-12-16 08:11:52,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5489 to 5489. [2023-12-16 08:11:52,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5489 states, 4153 states have (on average 1.2749819407657115) internal successors, (5295), 4288 states have internal predecessors, (5295), 632 states have call successors, (632), 511 states have call predecessors, (632), 702 states have return successors, (955), 694 states have call predecessors, (955), 631 states have call successors, (955) [2023-12-16 08:11:52,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5489 states to 5489 states and 6882 transitions. [2023-12-16 08:11:52,113 INFO L78 Accepts]: Start accepts. Automaton has 5489 states and 6882 transitions. Word has length 76 [2023-12-16 08:11:52,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:52,113 INFO L495 AbstractCegarLoop]: Abstraction has 5489 states and 6882 transitions. [2023-12-16 08:11:52,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 08:11:52,114 INFO L276 IsEmpty]: Start isEmpty. Operand 5489 states and 6882 transitions. [2023-12-16 08:11:52,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 08:11:52,117 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:52,117 INFO L195 NwaCegarLoop]: trace histogram [3, 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 08:11:52,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:52,321 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 08:11:52,321 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:52,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:52,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1350744653, now seen corresponding path program 1 times [2023-12-16 08:11:52,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:52,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330285077] [2023-12-16 08:11:52,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:52,323 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 08:11:52,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:52,324 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 08:11:52,359 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 08:11:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:52,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:52,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:52,492 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 08:11:52,493 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:52,493 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:52,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330285077] [2023-12-16 08:11:52,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1330285077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:52,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:52,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:52,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023435452] [2023-12-16 08:11:52,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:52,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:11:52,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:52,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:11:52,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:52,495 INFO L87 Difference]: Start difference. First operand 5489 states and 6882 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 08:11:53,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:53,490 INFO L93 Difference]: Finished difference Result 10636 states and 13214 transitions. [2023-12-16 08:11:53,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:11:53,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 85 [2023-12-16 08:11:53,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:53,512 INFO L225 Difference]: With dead ends: 10636 [2023-12-16 08:11:53,512 INFO L226 Difference]: Without dead ends: 5519 [2023-12-16 08:11:53,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 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 08:11:53,525 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 929 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:53,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 644 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 08:11:53,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5519 states. [2023-12-16 08:11:54,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5519 to 5519. [2023-12-16 08:11:54,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5519 states, 4168 states have (on average 1.2581573896353166) internal successors, (5244), 4318 states have internal predecessors, (5244), 632 states have call successors, (632), 511 states have call predecessors, (632), 717 states have return successors, (955), 694 states have call predecessors, (955), 631 states have call successors, (955) [2023-12-16 08:11:54,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5519 states to 5519 states and 6831 transitions. [2023-12-16 08:11:54,026 INFO L78 Accepts]: Start accepts. Automaton has 5519 states and 6831 transitions. Word has length 85 [2023-12-16 08:11:54,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:54,026 INFO L495 AbstractCegarLoop]: Abstraction has 5519 states and 6831 transitions. [2023-12-16 08:11:54,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 08:11:54,026 INFO L276 IsEmpty]: Start isEmpty. Operand 5519 states and 6831 transitions. [2023-12-16 08:11:54,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 08:11:54,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:54,029 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:11:54,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:54,236 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 08:11:54,237 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:54,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:54,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1804284816, now seen corresponding path program 1 times [2023-12-16 08:11:54,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:54,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043826902] [2023-12-16 08:11:54,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:54,238 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 08:11:54,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:54,239 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 08:11:54,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 08:11:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:54,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:11:54,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:54,372 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 08:11:54,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:54,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:54,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043826902] [2023-12-16 08:11:54,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043826902] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:54,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:54,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:11:54,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440119411] [2023-12-16 08:11:54,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:54,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:11:54,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:54,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:11:54,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:11:54,374 INFO L87 Difference]: Start difference. First operand 5519 states and 6831 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 08:11:54,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:54,787 INFO L93 Difference]: Finished difference Result 10425 states and 12769 transitions. [2023-12-16 08:11:54,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:11:54,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 86 [2023-12-16 08:11:54,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:54,804 INFO L225 Difference]: With dead ends: 10425 [2023-12-16 08:11:54,804 INFO L226 Difference]: Without dead ends: 5268 [2023-12-16 08:11:54,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 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 08:11:54,816 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 91 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:54,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1323 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:54,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5268 states. [2023-12-16 08:11:55,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5268 to 5265. [2023-12-16 08:11:55,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 3984 states have (on average 1.2464859437751004) internal successors, (4966), 4128 states have internal predecessors, (4966), 594 states have call successors, (594), 483 states have call predecessors, (594), 685 states have return successors, (838), 656 states have call predecessors, (838), 593 states have call successors, (838) [2023-12-16 08:11:55,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 6398 transitions. [2023-12-16 08:11:55,226 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 6398 transitions. Word has length 86 [2023-12-16 08:11:55,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:55,226 INFO L495 AbstractCegarLoop]: Abstraction has 5265 states and 6398 transitions. [2023-12-16 08:11:55,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 08:11:55,226 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 6398 transitions. [2023-12-16 08:11:55,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 08:11:55,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:55,232 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 08:11:55,240 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 08:11:55,436 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 08:11:55,437 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:55,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:55,437 INFO L85 PathProgramCache]: Analyzing trace with hash 501463007, now seen corresponding path program 1 times [2023-12-16 08:11:55,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:55,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893505181] [2023-12-16 08:11:55,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:55,438 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:11:55,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:55,439 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 08:11:55,444 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 08:11:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:55,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:55,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:55,598 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-12-16 08:11:55,599 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:55,599 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:55,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893505181] [2023-12-16 08:11:55,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [893505181] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:55,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:55,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:55,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889134358] [2023-12-16 08:11:55,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:55,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:11:55,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:55,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:11:55,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:11:55,600 INFO L87 Difference]: Start difference. First operand 5265 states and 6398 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 08:11:56,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:56,718 INFO L93 Difference]: Finished difference Result 12516 states and 15084 transitions. [2023-12-16 08:11:56,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:11:56,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 145 [2023-12-16 08:11:56,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:56,742 INFO L225 Difference]: With dead ends: 12516 [2023-12-16 08:11:56,742 INFO L226 Difference]: Without dead ends: 7408 [2023-12-16 08:11:56,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 141 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 08:11:56,755 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 968 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:56,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 923 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 08:11:56,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7408 states. [2023-12-16 08:11:57,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7408 to 7088. [2023-12-16 08:11:57,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7088 states, 5318 states have (on average 1.2393757051523129) internal successors, (6591), 5498 states have internal predecessors, (6591), 814 states have call successors, (814), 672 states have call predecessors, (814), 954 states have return successors, (1132), 919 states have call predecessors, (1132), 813 states have call successors, (1132) [2023-12-16 08:11:57,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7088 states to 7088 states and 8537 transitions. [2023-12-16 08:11:57,505 INFO L78 Accepts]: Start accepts. Automaton has 7088 states and 8537 transitions. Word has length 145 [2023-12-16 08:11:57,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:57,505 INFO L495 AbstractCegarLoop]: Abstraction has 7088 states and 8537 transitions. [2023-12-16 08:11:57,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 08:11:57,505 INFO L276 IsEmpty]: Start isEmpty. Operand 7088 states and 8537 transitions. [2023-12-16 08:11:57,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 08:11:57,509 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:57,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:11:57,515 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 08:11:57,714 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 08:11:57,714 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:57,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:57,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1626747324, now seen corresponding path program 1 times [2023-12-16 08:11:57,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:57,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579771229] [2023-12-16 08:11:57,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:57,715 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 08:11:57,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:57,717 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 08:11:57,756 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 08:11:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:57,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:11:57,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:57,903 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 08:11:57,903 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:57,903 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:57,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579771229] [2023-12-16 08:11:57,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579771229] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:57,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:57,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:11:57,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530963975] [2023-12-16 08:11:57,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:57,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:11:57,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:57,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:11:57,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:11:57,905 INFO L87 Difference]: Start difference. First operand 7088 states and 8537 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:58,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:58,432 INFO L93 Difference]: Finished difference Result 7427 states and 9089 transitions. [2023-12-16 08:11:58,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:11:58,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 08:11:58,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:58,453 INFO L225 Difference]: With dead ends: 7427 [2023-12-16 08:11:58,453 INFO L226 Difference]: Without dead ends: 7088 [2023-12-16 08:11:58,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 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 08:11:58,458 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 555 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:58,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 741 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:58,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7088 states. [2023-12-16 08:11:58,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7088 to 7088. [2023-12-16 08:11:58,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7088 states, 5318 states have (on average 1.2391876645355397) internal successors, (6590), 5498 states have internal predecessors, (6590), 814 states have call successors, (814), 672 states have call predecessors, (814), 954 states have return successors, (1132), 919 states have call predecessors, (1132), 813 states have call successors, (1132) [2023-12-16 08:11:58,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7088 states to 7088 states and 8536 transitions. [2023-12-16 08:11:58,946 INFO L78 Accepts]: Start accepts. Automaton has 7088 states and 8536 transitions. Word has length 161 [2023-12-16 08:11:58,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:58,946 INFO L495 AbstractCegarLoop]: Abstraction has 7088 states and 8536 transitions. [2023-12-16 08:11:58,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:58,946 INFO L276 IsEmpty]: Start isEmpty. Operand 7088 states and 8536 transitions. [2023-12-16 08:11:58,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 08:11:58,951 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:58,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:11:58,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:59,157 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 08:11:59,158 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:59,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:59,158 INFO L85 PathProgramCache]: Analyzing trace with hash -267586562, now seen corresponding path program 1 times [2023-12-16 08:11:59,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:59,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410747263] [2023-12-16 08:11:59,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:59,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:11:59,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:59,161 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 08:11:59,196 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 08:11:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:59,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:11:59,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:59,355 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 08:11:59,355 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:59,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:59,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410747263] [2023-12-16 08:11:59,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410747263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:59,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:59,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:11:59,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663095319] [2023-12-16 08:11:59,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:59,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:11:59,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:59,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:11:59,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:11:59,357 INFO L87 Difference]: Start difference. First operand 7088 states and 8536 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:59,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:59,910 INFO L93 Difference]: Finished difference Result 7419 states and 9072 transitions. [2023-12-16 08:11:59,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:11:59,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 08:11:59,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:59,932 INFO L225 Difference]: With dead ends: 7419 [2023-12-16 08:11:59,932 INFO L226 Difference]: Without dead ends: 7088 [2023-12-16 08:11:59,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 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 08:11:59,938 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 546 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:59,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 740 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:59,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7088 states. [2023-12-16 08:12:00,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7088 to 7088. [2023-12-16 08:12:00,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7088 states, 5318 states have (on average 1.2389996239187664) internal successors, (6589), 5498 states have internal predecessors, (6589), 814 states have call successors, (814), 672 states have call predecessors, (814), 954 states have return successors, (1132), 919 states have call predecessors, (1132), 813 states have call successors, (1132) [2023-12-16 08:12:00,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7088 states to 7088 states and 8535 transitions. [2023-12-16 08:12:00,508 INFO L78 Accepts]: Start accepts. Automaton has 7088 states and 8535 transitions. Word has length 161 [2023-12-16 08:12:00,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:00,509 INFO L495 AbstractCegarLoop]: Abstraction has 7088 states and 8535 transitions. [2023-12-16 08:12:00,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:00,509 INFO L276 IsEmpty]: Start isEmpty. Operand 7088 states and 8535 transitions. [2023-12-16 08:12:00,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 08:12:00,513 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:00,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:00,522 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 (18)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:00,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:00,721 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:00,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:00,722 INFO L85 PathProgramCache]: Analyzing trace with hash -605874112, now seen corresponding path program 1 times [2023-12-16 08:12:00,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:00,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1845015546] [2023-12-16 08:12:00,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:00,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:00,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:00,724 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:12:00,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 08:12:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:00,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:00,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:00,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:00,997 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:00,997 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:00,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1845015546] [2023-12-16 08:12:00,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1845015546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:00,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:00,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:01,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946317461] [2023-12-16 08:12:01,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:01,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:01,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:01,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:01,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:01,001 INFO L87 Difference]: Start difference. First operand 7088 states and 8535 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:02,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:02,493 INFO L93 Difference]: Finished difference Result 7793 states and 9696 transitions. [2023-12-16 08:12:02,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:12:02,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 08:12:02,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:02,520 INFO L225 Difference]: With dead ends: 7793 [2023-12-16 08:12:02,520 INFO L226 Difference]: Without dead ends: 7465 [2023-12-16 08:12:02,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:02,526 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 1244 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 1592 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:02,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1274 Valid, 1592 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:12:02,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7465 states. [2023-12-16 08:12:03,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7465 to 7436. [2023-12-16 08:12:03,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7436 states, 5638 states have (on average 1.26232706633558) internal successors, (7117), 5819 states have internal predecessors, (7117), 835 states have call successors, (835), 678 states have call predecessors, (835), 961 states have return successors, (1154), 940 states have call predecessors, (1154), 834 states have call successors, (1154) [2023-12-16 08:12:03,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7436 states to 7436 states and 9106 transitions. [2023-12-16 08:12:03,114 INFO L78 Accepts]: Start accepts. Automaton has 7436 states and 9106 transitions. Word has length 161 [2023-12-16 08:12:03,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:03,114 INFO L495 AbstractCegarLoop]: Abstraction has 7436 states and 9106 transitions. [2023-12-16 08:12:03,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:03,114 INFO L276 IsEmpty]: Start isEmpty. Operand 7436 states and 9106 transitions. [2023-12-16 08:12:03,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 08:12:03,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:03,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:03,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:03,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:03,325 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:03,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:03,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1092657024, now seen corresponding path program 1 times [2023-12-16 08:12:03,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:03,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378788725] [2023-12-16 08:12:03,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:03,327 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:03,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:03,328 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:12:03,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-16 08:12:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:03,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:03,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:03,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:03,567 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:03,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:03,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1378788725] [2023-12-16 08:12:03,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1378788725] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:03,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:03,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:03,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002797800] [2023-12-16 08:12:03,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:03,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:03,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:03,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:03,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:03,570 INFO L87 Difference]: Start difference. First operand 7436 states and 9106 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:04,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:04,520 INFO L93 Difference]: Finished difference Result 8112 states and 10215 transitions. [2023-12-16 08:12:04,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:04,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 08:12:04,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:04,537 INFO L225 Difference]: With dead ends: 8112 [2023-12-16 08:12:04,538 INFO L226 Difference]: Without dead ends: 7436 [2023-12-16 08:12:04,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:04,541 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 916 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:04,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 1044 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:12:04,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7436 states. [2023-12-16 08:12:05,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7436 to 7436. [2023-12-16 08:12:05,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7436 states, 5638 states have (on average 1.2610854913089748) internal successors, (7110), 5819 states have internal predecessors, (7110), 835 states have call successors, (835), 678 states have call predecessors, (835), 961 states have return successors, (1154), 940 states have call predecessors, (1154), 834 states have call successors, (1154) [2023-12-16 08:12:05,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7436 states to 7436 states and 9099 transitions. [2023-12-16 08:12:05,130 INFO L78 Accepts]: Start accepts. Automaton has 7436 states and 9099 transitions. Word has length 161 [2023-12-16 08:12:05,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:05,130 INFO L495 AbstractCegarLoop]: Abstraction has 7436 states and 9099 transitions. [2023-12-16 08:12:05,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:05,130 INFO L276 IsEmpty]: Start isEmpty. Operand 7436 states and 9099 transitions. [2023-12-16 08:12:05,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 08:12:05,134 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:05,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:05,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:05,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:05,342 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:05,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:05,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1490073792, now seen corresponding path program 1 times [2023-12-16 08:12:05,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:05,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868129567] [2023-12-16 08:12:05,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:05,343 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:05,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:05,344 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:12:05,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 08:12:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:05,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:05,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:05,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:05,572 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:05,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:05,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868129567] [2023-12-16 08:12:05,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868129567] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:05,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:05,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:05,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777180796] [2023-12-16 08:12:05,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:05,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:05,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:05,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:05,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:05,574 INFO L87 Difference]: Start difference. First operand 7436 states and 9099 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:06,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:06,738 INFO L93 Difference]: Finished difference Result 8112 states and 10201 transitions. [2023-12-16 08:12:06,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:06,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 08:12:06,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:06,755 INFO L225 Difference]: With dead ends: 8112 [2023-12-16 08:12:06,756 INFO L226 Difference]: Without dead ends: 7436 [2023-12-16 08:12:06,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:06,759 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 910 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:06,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 1037 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 08:12:06,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7436 states. [2023-12-16 08:12:07,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7436 to 7436. [2023-12-16 08:12:07,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7436 states, 5638 states have (on average 1.2598439162823696) internal successors, (7103), 5819 states have internal predecessors, (7103), 835 states have call successors, (835), 678 states have call predecessors, (835), 961 states have return successors, (1154), 940 states have call predecessors, (1154), 834 states have call successors, (1154) [2023-12-16 08:12:07,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7436 states to 7436 states and 9092 transitions. [2023-12-16 08:12:07,382 INFO L78 Accepts]: Start accepts. Automaton has 7436 states and 9092 transitions. Word has length 161 [2023-12-16 08:12:07,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:07,383 INFO L495 AbstractCegarLoop]: Abstraction has 7436 states and 9092 transitions. [2023-12-16 08:12:07,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:07,383 INFO L276 IsEmpty]: Start isEmpty. Operand 7436 states and 9092 transitions. [2023-12-16 08:12:07,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 08:12:07,386 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:07,387 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:07,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:07,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:07,593 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:07,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:07,594 INFO L85 PathProgramCache]: Analyzing trace with hash 187914368, now seen corresponding path program 1 times [2023-12-16 08:12:07,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:07,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2043311229] [2023-12-16 08:12:07,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:07,595 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:07,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:07,596 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:12:07,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-16 08:12:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:07,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:07,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:07,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:07,828 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:07,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:07,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2043311229] [2023-12-16 08:12:07,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2043311229] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:07,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:07,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:07,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691970313] [2023-12-16 08:12:07,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:07,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:07,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:07,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:07,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:07,830 INFO L87 Difference]: Start difference. First operand 7436 states and 9092 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:08,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:08,924 INFO L93 Difference]: Finished difference Result 8112 states and 10187 transitions. [2023-12-16 08:12:08,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:08,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 08:12:08,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:08,946 INFO L225 Difference]: With dead ends: 8112 [2023-12-16 08:12:08,946 INFO L226 Difference]: Without dead ends: 7436 [2023-12-16 08:12:08,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:08,951 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 904 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:08,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 1030 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:12:08,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7436 states. [2023-12-16 08:12:09,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7436 to 7436. [2023-12-16 08:12:09,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7436 states, 5638 states have (on average 1.2586023412557645) internal successors, (7096), 5819 states have internal predecessors, (7096), 835 states have call successors, (835), 678 states have call predecessors, (835), 961 states have return successors, (1154), 940 states have call predecessors, (1154), 834 states have call successors, (1154) [2023-12-16 08:12:09,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7436 states to 7436 states and 9085 transitions. [2023-12-16 08:12:09,667 INFO L78 Accepts]: Start accepts. Automaton has 7436 states and 9085 transitions. Word has length 161 [2023-12-16 08:12:09,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:09,667 INFO L495 AbstractCegarLoop]: Abstraction has 7436 states and 9085 transitions. [2023-12-16 08:12:09,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:09,667 INFO L276 IsEmpty]: Start isEmpty. Operand 7436 states and 9085 transitions. [2023-12-16 08:12:09,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 08:12:09,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:09,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:09,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:09,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:09,874 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:09,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:09,874 INFO L85 PathProgramCache]: Analyzing trace with hash 605803070, now seen corresponding path program 1 times [2023-12-16 08:12:09,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:09,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [3960090] [2023-12-16 08:12:09,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:09,875 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:09,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:09,876 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:12:09,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 08:12:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:10,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:10,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:10,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:10,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:10,087 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:10,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [3960090] [2023-12-16 08:12:10,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [3960090] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:10,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:10,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:10,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316688038] [2023-12-16 08:12:10,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:10,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:10,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:10,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:10,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:10,089 INFO L87 Difference]: Start difference. First operand 7436 states and 9085 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:11,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:11,088 INFO L93 Difference]: Finished difference Result 8112 states and 10173 transitions. [2023-12-16 08:12:11,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:11,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 08:12:11,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:11,111 INFO L225 Difference]: With dead ends: 8112 [2023-12-16 08:12:11,111 INFO L226 Difference]: Without dead ends: 7436 [2023-12-16 08:12:11,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:11,118 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 898 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:11,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 1023 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:12:11,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7436 states. [2023-12-16 08:12:11,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7436 to 7436. [2023-12-16 08:12:11,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7436 states, 5638 states have (on average 1.2573607662291593) internal successors, (7089), 5819 states have internal predecessors, (7089), 835 states have call successors, (835), 678 states have call predecessors, (835), 961 states have return successors, (1154), 940 states have call predecessors, (1154), 834 states have call successors, (1154) [2023-12-16 08:12:11,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7436 states to 7436 states and 9078 transitions. [2023-12-16 08:12:11,890 INFO L78 Accepts]: Start accepts. Automaton has 7436 states and 9078 transitions. Word has length 161 [2023-12-16 08:12:11,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:11,890 INFO L495 AbstractCegarLoop]: Abstraction has 7436 states and 9078 transitions. [2023-12-16 08:12:11,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:11,890 INFO L276 IsEmpty]: Start isEmpty. Operand 7436 states and 9078 transitions. [2023-12-16 08:12:11,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 08:12:11,892 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:11,892 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:11,897 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 (23)] Ended with exit code 0 [2023-12-16 08:12:12,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:12,093 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:12,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:12,094 INFO L85 PathProgramCache]: Analyzing trace with hash 975397374, now seen corresponding path program 1 times [2023-12-16 08:12:12,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:12,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1780388080] [2023-12-16 08:12:12,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:12,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:12,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:12,096 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:12:12,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-16 08:12:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:12,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:12,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:12,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:12,334 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:12,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:12,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1780388080] [2023-12-16 08:12:12,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1780388080] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:12,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:12,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:12,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147866927] [2023-12-16 08:12:12,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:12,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:12,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:12,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:12,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:12,336 INFO L87 Difference]: Start difference. First operand 7436 states and 9078 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:13,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:13,375 INFO L93 Difference]: Finished difference Result 8112 states and 10159 transitions. [2023-12-16 08:12:13,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:13,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 08:12:13,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:13,390 INFO L225 Difference]: With dead ends: 8112 [2023-12-16 08:12:13,391 INFO L226 Difference]: Without dead ends: 7436 [2023-12-16 08:12:13,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:13,395 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 892 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:13,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 1016 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:12:13,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7436 states. [2023-12-16 08:12:14,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7436 to 7436. [2023-12-16 08:12:14,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7436 states, 5638 states have (on average 1.256119191202554) internal successors, (7082), 5819 states have internal predecessors, (7082), 835 states have call successors, (835), 678 states have call predecessors, (835), 961 states have return successors, (1154), 940 states have call predecessors, (1154), 834 states have call successors, (1154) [2023-12-16 08:12:14,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7436 states to 7436 states and 9071 transitions. [2023-12-16 08:12:14,118 INFO L78 Accepts]: Start accepts. Automaton has 7436 states and 9071 transitions. Word has length 161 [2023-12-16 08:12:14,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:14,118 INFO L495 AbstractCegarLoop]: Abstraction has 7436 states and 9071 transitions. [2023-12-16 08:12:14,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:14,118 INFO L276 IsEmpty]: Start isEmpty. Operand 7436 states and 9071 transitions. [2023-12-16 08:12:14,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 08:12:14,120 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:14,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:14,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-12-16 08:12:14,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:14,321 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:14,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:14,321 INFO L85 PathProgramCache]: Analyzing trace with hash 17488446, now seen corresponding path program 1 times [2023-12-16 08:12:14,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:14,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369409582] [2023-12-16 08:12:14,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:14,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:14,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:14,323 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:12:14,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 08:12:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:14,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:14,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:14,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:14,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:14,535 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:14,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [369409582] [2023-12-16 08:12:14,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [369409582] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:14,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:14,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:14,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615285525] [2023-12-16 08:12:14,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:14,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:14,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:14,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:14,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:14,537 INFO L87 Difference]: Start difference. First operand 7436 states and 9071 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:15,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:15,611 INFO L93 Difference]: Finished difference Result 8112 states and 10145 transitions. [2023-12-16 08:12:15,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:15,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 08:12:15,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:15,624 INFO L225 Difference]: With dead ends: 8112 [2023-12-16 08:12:15,624 INFO L226 Difference]: Without dead ends: 7436 [2023-12-16 08:12:15,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:15,627 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 886 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:15,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 1009 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:12:15,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7436 states. [2023-12-16 08:12:16,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7436 to 7436. [2023-12-16 08:12:16,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7436 states, 5638 states have (on average 1.254877616175949) internal successors, (7075), 5819 states have internal predecessors, (7075), 835 states have call successors, (835), 678 states have call predecessors, (835), 961 states have return successors, (1154), 940 states have call predecessors, (1154), 834 states have call successors, (1154) [2023-12-16 08:12:16,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7436 states to 7436 states and 9064 transitions. [2023-12-16 08:12:16,437 INFO L78 Accepts]: Start accepts. Automaton has 7436 states and 9064 transitions. Word has length 161 [2023-12-16 08:12:16,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:16,437 INFO L495 AbstractCegarLoop]: Abstraction has 7436 states and 9064 transitions. [2023-12-16 08:12:16,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:16,438 INFO L276 IsEmpty]: Start isEmpty. Operand 7436 states and 9064 transitions. [2023-12-16 08:12:16,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 08:12:16,440 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:16,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:16,459 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-12-16 08:12:16,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:16,643 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:16,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:16,644 INFO L85 PathProgramCache]: Analyzing trace with hash -13411842, now seen corresponding path program 1 times [2023-12-16 08:12:16,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:16,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313784135] [2023-12-16 08:12:16,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:16,644 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:16,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:16,645 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:12:16,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-16 08:12:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:16,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:16,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:16,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:16,871 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:16,871 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:16,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313784135] [2023-12-16 08:12:16,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313784135] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:16,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:16,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:16,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598703696] [2023-12-16 08:12:16,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:16,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:16,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:16,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:16,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:16,873 INFO L87 Difference]: Start difference. First operand 7436 states and 9064 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:17,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:17,975 INFO L93 Difference]: Finished difference Result 8112 states and 10131 transitions. [2023-12-16 08:12:17,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:17,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 08:12:17,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:17,987 INFO L225 Difference]: With dead ends: 8112 [2023-12-16 08:12:17,987 INFO L226 Difference]: Without dead ends: 7436 [2023-12-16 08:12:17,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:17,990 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 880 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:17,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 1002 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:12:17,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7436 states. [2023-12-16 08:12:18,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7436 to 7436. [2023-12-16 08:12:18,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7436 states, 5638 states have (on average 1.2536360411493437) internal successors, (7068), 5819 states have internal predecessors, (7068), 835 states have call successors, (835), 678 states have call predecessors, (835), 961 states have return successors, (1154), 940 states have call predecessors, (1154), 834 states have call successors, (1154) [2023-12-16 08:12:18,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7436 states to 7436 states and 9057 transitions. [2023-12-16 08:12:18,782 INFO L78 Accepts]: Start accepts. Automaton has 7436 states and 9057 transitions. Word has length 161 [2023-12-16 08:12:18,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:18,782 INFO L495 AbstractCegarLoop]: Abstraction has 7436 states and 9057 transitions. [2023-12-16 08:12:18,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:18,782 INFO L276 IsEmpty]: Start isEmpty. Operand 7436 states and 9057 transitions. [2023-12-16 08:12:18,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 08:12:18,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:18,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:18,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2023-12-16 08:12:18,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:18,985 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:18,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:18,985 INFO L85 PathProgramCache]: Analyzing trace with hash -568597954, now seen corresponding path program 1 times [2023-12-16 08:12:18,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:18,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097618621] [2023-12-16 08:12:18,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:18,986 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:18,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:18,987 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:12:18,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-16 08:12:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:19,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:19,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:19,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:19,204 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:19,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:19,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097618621] [2023-12-16 08:12:19,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097618621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:19,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:19,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:19,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505994172] [2023-12-16 08:12:19,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:19,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:19,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:19,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:19,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:19,206 INFO L87 Difference]: Start difference. First operand 7436 states and 9057 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:20,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:20,337 INFO L93 Difference]: Finished difference Result 8112 states and 10117 transitions. [2023-12-16 08:12:20,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:20,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 08:12:20,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:20,349 INFO L225 Difference]: With dead ends: 8112 [2023-12-16 08:12:20,349 INFO L226 Difference]: Without dead ends: 7436 [2023-12-16 08:12:20,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:20,351 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 873 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:20,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 995 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:12:20,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7436 states. [2023-12-16 08:12:21,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7436 to 7436. [2023-12-16 08:12:21,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7436 states, 5638 states have (on average 1.2523944661227386) internal successors, (7061), 5819 states have internal predecessors, (7061), 835 states have call successors, (835), 678 states have call predecessors, (835), 961 states have return successors, (1154), 940 states have call predecessors, (1154), 834 states have call successors, (1154) [2023-12-16 08:12:21,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7436 states to 7436 states and 9050 transitions. [2023-12-16 08:12:21,115 INFO L78 Accepts]: Start accepts. Automaton has 7436 states and 9050 transitions. Word has length 161 [2023-12-16 08:12:21,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:21,115 INFO L495 AbstractCegarLoop]: Abstraction has 7436 states and 9050 transitions. [2023-12-16 08:12:21,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:21,115 INFO L276 IsEmpty]: Start isEmpty. Operand 7436 states and 9050 transitions. [2023-12-16 08:12:21,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 08:12:21,117 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:21,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:21,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2023-12-16 08:12:21,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:21,318 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:21,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:21,318 INFO L85 PathProgramCache]: Analyzing trace with hash 34175614, now seen corresponding path program 1 times [2023-12-16 08:12:21,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:21,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649167710] [2023-12-16 08:12:21,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:21,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:21,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:21,320 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:12:21,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-16 08:12:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:21,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:21,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:21,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:21,542 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:21,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:21,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649167710] [2023-12-16 08:12:21,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649167710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:21,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:21,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:21,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935728917] [2023-12-16 08:12:21,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:21,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:21,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:21,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:21,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:21,544 INFO L87 Difference]: Start difference. First operand 7436 states and 9050 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:22,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:22,884 INFO L93 Difference]: Finished difference Result 8112 states and 10103 transitions. [2023-12-16 08:12:22,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:22,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 08:12:22,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:22,897 INFO L225 Difference]: With dead ends: 8112 [2023-12-16 08:12:22,897 INFO L226 Difference]: Without dead ends: 7436 [2023-12-16 08:12:22,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:22,900 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 867 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:22,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 988 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:12:22,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7436 states. [2023-12-16 08:12:23,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7436 to 7436. [2023-12-16 08:12:23,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7436 states, 5638 states have (on average 1.2511528910961334) internal successors, (7054), 5819 states have internal predecessors, (7054), 835 states have call successors, (835), 678 states have call predecessors, (835), 961 states have return successors, (1154), 940 states have call predecessors, (1154), 834 states have call successors, (1154) [2023-12-16 08:12:23,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7436 states to 7436 states and 9043 transitions. [2023-12-16 08:12:23,692 INFO L78 Accepts]: Start accepts. Automaton has 7436 states and 9043 transitions. Word has length 161 [2023-12-16 08:12:23,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:23,692 INFO L495 AbstractCegarLoop]: Abstraction has 7436 states and 9043 transitions. [2023-12-16 08:12:23,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:23,692 INFO L276 IsEmpty]: Start isEmpty. Operand 7436 states and 9043 transitions. [2023-12-16 08:12:23,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 08:12:23,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:23,694 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:23,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:23,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:23,895 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:23,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:23,896 INFO L85 PathProgramCache]: Analyzing trace with hash -639116738, now seen corresponding path program 1 times [2023-12-16 08:12:23,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:23,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840353061] [2023-12-16 08:12:23,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:23,896 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:23,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:23,897 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:12:23,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-16 08:12:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:24,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:24,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:24,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:24,103 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:24,103 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:24,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840353061] [2023-12-16 08:12:24,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840353061] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:24,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:24,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:24,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241398695] [2023-12-16 08:12:24,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:24,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:24,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:24,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:24,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:24,105 INFO L87 Difference]: Start difference. First operand 7436 states and 9043 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:25,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:25,394 INFO L93 Difference]: Finished difference Result 8112 states and 10089 transitions. [2023-12-16 08:12:25,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:25,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 08:12:25,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:25,405 INFO L225 Difference]: With dead ends: 8112 [2023-12-16 08:12:25,405 INFO L226 Difference]: Without dead ends: 7436 [2023-12-16 08:12:25,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:25,408 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 861 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:25,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 981 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:12:25,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7436 states. [2023-12-16 08:12:26,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7436 to 7436. [2023-12-16 08:12:26,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7436 states, 5638 states have (on average 1.249911316069528) internal successors, (7047), 5819 states have internal predecessors, (7047), 835 states have call successors, (835), 678 states have call predecessors, (835), 961 states have return successors, (1154), 940 states have call predecessors, (1154), 834 states have call successors, (1154) [2023-12-16 08:12:26,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7436 states to 7436 states and 9036 transitions. [2023-12-16 08:12:26,224 INFO L78 Accepts]: Start accepts. Automaton has 7436 states and 9036 transitions. Word has length 161 [2023-12-16 08:12:26,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:26,225 INFO L495 AbstractCegarLoop]: Abstraction has 7436 states and 9036 transitions. [2023-12-16 08:12:26,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:26,225 INFO L276 IsEmpty]: Start isEmpty. Operand 7436 states and 9036 transitions. [2023-12-16 08:12:26,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 08:12:26,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:26,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:26,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2023-12-16 08:12:26,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:26,428 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:26,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:26,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1223888388, now seen corresponding path program 1 times [2023-12-16 08:12:26,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:26,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394649218] [2023-12-16 08:12:26,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:26,429 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:26,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:26,430 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:12:26,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-16 08:12:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:26,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:26,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:26,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:26,643 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:26,643 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:26,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394649218] [2023-12-16 08:12:26,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394649218] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:26,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:26,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:26,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471378132] [2023-12-16 08:12:26,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:26,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:26,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:26,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:26,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:26,645 INFO L87 Difference]: Start difference. First operand 7436 states and 9036 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:28,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:28,018 INFO L93 Difference]: Finished difference Result 8278 states and 10347 transitions. [2023-12-16 08:12:28,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:12:28,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 08:12:28,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:28,028 INFO L225 Difference]: With dead ends: 8278 [2023-12-16 08:12:28,028 INFO L226 Difference]: Without dead ends: 7602 [2023-12-16 08:12:28,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:28,030 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 969 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:28,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 975 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 08:12:28,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7602 states. [2023-12-16 08:12:28,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7602 to 7602. [2023-12-16 08:12:28,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7602 states, 5798 states have (on average 1.2549154880993445) internal successors, (7276), 5979 states have internal predecessors, (7276), 837 states have call successors, (837), 682 states have call predecessors, (837), 965 states have return successors, (1156), 942 states have call predecessors, (1156), 836 states have call successors, (1156) [2023-12-16 08:12:28,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7602 states to 7602 states and 9269 transitions. [2023-12-16 08:12:28,872 INFO L78 Accepts]: Start accepts. Automaton has 7602 states and 9269 transitions. Word has length 161 [2023-12-16 08:12:28,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:28,873 INFO L495 AbstractCegarLoop]: Abstraction has 7602 states and 9269 transitions. [2023-12-16 08:12:28,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:28,873 INFO L276 IsEmpty]: Start isEmpty. Operand 7602 states and 9269 transitions. [2023-12-16 08:12:28,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 08:12:28,876 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:28,876 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:28,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2023-12-16 08:12:29,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:29,078 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:29,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:29,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1635761732, now seen corresponding path program 1 times [2023-12-16 08:12:29,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:29,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522107293] [2023-12-16 08:12:29,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:29,079 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:29,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:29,080 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:12:29,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-16 08:12:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:29,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:29,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:29,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:29,282 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:29,282 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:29,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522107293] [2023-12-16 08:12:29,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522107293] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:29,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:29,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:29,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977955437] [2023-12-16 08:12:29,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:29,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:29,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:29,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:29,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:29,283 INFO L87 Difference]: Start difference. First operand 7602 states and 9269 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:30,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:30,729 INFO L93 Difference]: Finished difference Result 8610 states and 10813 transitions. [2023-12-16 08:12:30,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:12:30,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2023-12-16 08:12:30,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:30,742 INFO L225 Difference]: With dead ends: 8610 [2023-12-16 08:12:30,742 INFO L226 Difference]: Without dead ends: 7768 [2023-12-16 08:12:30,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:30,745 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 962 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:30,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 968 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 08:12:30,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7768 states. [2023-12-16 08:12:31,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7768 to 7768. [2023-12-16 08:12:31,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7768 states, 5958 states have (on average 1.2589795233299765) internal successors, (7501), 6139 states have internal predecessors, (7501), 839 states have call successors, (839), 686 states have call predecessors, (839), 969 states have return successors, (1158), 944 states have call predecessors, (1158), 838 states have call successors, (1158) [2023-12-16 08:12:31,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7768 states to 7768 states and 9498 transitions. [2023-12-16 08:12:31,635 INFO L78 Accepts]: Start accepts. Automaton has 7768 states and 9498 transitions. Word has length 161 [2023-12-16 08:12:31,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:31,635 INFO L495 AbstractCegarLoop]: Abstraction has 7768 states and 9498 transitions. [2023-12-16 08:12:31,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:12:31,636 INFO L276 IsEmpty]: Start isEmpty. Operand 7768 states and 9498 transitions. [2023-12-16 08:12:31,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 08:12:31,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:31,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:31,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:31,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:31,844 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:31,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:31,845 INFO L85 PathProgramCache]: Analyzing trace with hash -391756739, now seen corresponding path program 1 times [2023-12-16 08:12:31,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:31,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439087975] [2023-12-16 08:12:31,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:31,845 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:31,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:31,846 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:12:31,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process Received shutdown request... [2023-12-16 08:12:31,952 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 (32)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:12:31,963 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 08:12:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:31,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:31,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:32,014 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 08:12:32,019 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 (32)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:32,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:32,214 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 162 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. [2023-12-16 08:12:32,216 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 08:12:32,221 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:32,223 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:12:32,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:12:32 BoogieIcfgContainer [2023-12-16 08:12:32,226 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:12:32,226 INFO L158 Benchmark]: Toolchain (without parser) took 56420.40ms. Allocated memory was 208.7MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 154.9MB in the beginning and 982.6MB in the end (delta: -827.7MB). Peak memory consumption was 980.6MB. Max. memory is 8.0GB. [2023-12-16 08:12:32,226 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 208.7MB. Free memory is still 157.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:12:32,227 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.19ms. Allocated memory is still 208.7MB. Free memory was 154.6MB in the beginning and 125.8MB in the end (delta: 28.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-16 08:12:32,229 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.52ms. Allocated memory is still 208.7MB. Free memory was 125.8MB in the beginning and 121.0MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 08:12:32,231 INFO L158 Benchmark]: Boogie Preprocessor took 156.76ms. Allocated memory was 208.7MB in the beginning and 340.8MB in the end (delta: 132.1MB). Free memory was 121.0MB in the beginning and 305.1MB in the end (delta: -184.1MB). Peak memory consumption was 18.1MB. Max. memory is 8.0GB. [2023-12-16 08:12:32,231 INFO L158 Benchmark]: RCFGBuilder took 1220.58ms. Allocated memory is still 340.8MB. Free memory was 305.1MB in the beginning and 218.6MB in the end (delta: 86.5MB). Peak memory consumption was 86.0MB. Max. memory is 8.0GB. [2023-12-16 08:12:32,235 INFO L158 Benchmark]: TraceAbstraction took 54331.98ms. Allocated memory was 340.8MB in the beginning and 2.0GB in the end (delta: 1.7GB). Free memory was 217.6MB in the beginning and 982.6MB in the end (delta: -765.1MB). Peak memory consumption was 910.0MB. Max. memory is 8.0GB. [2023-12-16 08:12:32,237 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 208.7MB. Free memory is still 157.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 605.19ms. Allocated memory is still 208.7MB. Free memory was 154.6MB in the beginning and 125.8MB in the end (delta: 28.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 96.52ms. Allocated memory is still 208.7MB. Free memory was 125.8MB in the beginning and 121.0MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 156.76ms. Allocated memory was 208.7MB in the beginning and 340.8MB in the end (delta: 132.1MB). Free memory was 121.0MB in the beginning and 305.1MB in the end (delta: -184.1MB). Peak memory consumption was 18.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1220.58ms. Allocated memory is still 340.8MB. Free memory was 305.1MB in the beginning and 218.6MB in the end (delta: 86.5MB). Peak memory consumption was 86.0MB. Max. memory is 8.0GB. * TraceAbstraction took 54331.98ms. Allocated memory was 340.8MB in the beginning and 2.0GB in the end (delta: 1.7GB). Free memory was 217.6MB in the beginning and 982.6MB in the end (delta: -765.1MB). Peak memory consumption was 910.0MB. 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: 496]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 496). Cancelled while NwaCegarLoop was analyzing trace of length 162 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 28]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 28). Cancelled while NwaCegarLoop was analyzing trace of length 162 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 15 procedures, 439 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 54.3s, OverallIterations: 31, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 26.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21855 SdHoareTripleChecker+Valid, 12.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21355 mSDsluCounter, 36083 SdHoareTripleChecker+Invalid, 10.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21226 mSDsCounter, 1215 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15187 IncrementalHoareTripleChecker+Invalid, 16402 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1215 mSolverCounterUnsat, 14857 mSDtfsCounter, 15187 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3551 GetRequests, 3453 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7768occurred in iteration=30, InterpolantAutomatonStates: 132, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 14.8s AutomataMinimizationTime, 30 MinimizatonAttempts, 2745 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 3488 NumberOfCodeBlocks, 3488 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 3525 ConstructedInterpolants, 0 QuantifiedInterpolants, 5895 SizeOfPredicates, 6 NumberOfNonLiveVariables, 10639 ConjunctsInSsa, 112 ConjunctsInUnsatCore, 31 InterpolantComputations, 29 PerfectInterpolantSequences, 142/146 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