/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.05.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:10:24,998 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:10:25,087 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 08:10:25,094 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:10:25,094 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:10:25,125 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:10:25,126 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:10:25,126 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:10:25,127 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:10:25,130 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:10:25,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:10:25,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:10:25,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:10:25,133 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:10:25,133 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:10:25,133 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:10:25,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:10:25,134 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:10:25,134 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:10:25,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:10:25,135 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:10:25,135 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:10:25,135 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:10:25,135 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:10:25,136 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:10:25,136 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:10:25,136 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:10:25,136 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:10:25,137 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:10:25,137 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:10:25,138 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:10:25,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:10:25,138 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:10:25,138 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:10:25,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:10:25,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:10:25,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:10:25,139 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:10:25,140 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:10:25,140 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:10:25,140 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:10:25,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:10:25,141 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:10:25,141 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:10:25,141 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:10:25,141 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:10:25,141 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:10:25,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:10:25,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:10:25,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:10:25,403 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:10:25,407 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:10:25,409 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.05.cil-2.c [2023-12-16 08:10:26,715 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:10:26,959 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:10:26,959 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.05.cil-2.c [2023-12-16 08:10:26,984 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98a1b8934/be8b35834bbb44feae04aeddae4333e7/FLAG86623b120 [2023-12-16 08:10:27,002 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98a1b8934/be8b35834bbb44feae04aeddae4333e7 [2023-12-16 08:10:27,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:10:27,005 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:10:27,007 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:10:27,007 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:10:27,012 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:10:27,012 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:10:27" (1/1) ... [2023-12-16 08:10:27,013 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1be77b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:27, skipping insertion in model container [2023-12-16 08:10:27,014 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:10:27" (1/1) ... [2023-12-16 08:10:27,072 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:10:27,239 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.05.cil-2.c[914,927] [2023-12-16 08:10:27,282 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.05.cil-2.c[7115,7128] [2023-12-16 08:10:27,360 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:10:27,381 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:10:27,400 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.05.cil-2.c[914,927] [2023-12-16 08:10:27,415 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.05.cil-2.c[7115,7128] [2023-12-16 08:10:27,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:10:27,498 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:10:27,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:27 WrapperNode [2023-12-16 08:10:27,498 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:10:27,500 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:10:27,500 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:10:27,500 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:10:27,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:27" (1/1) ... [2023-12-16 08:10:27,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:27" (1/1) ... [2023-12-16 08:10:27,554 INFO L138 Inliner]: procedures = 64, calls = 73, calls flagged for inlining = 31, calls inlined = 31, statements flattened = 628 [2023-12-16 08:10:27,554 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:10:27,555 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:10:27,555 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:10:27,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:10:27,564 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:27" (1/1) ... [2023-12-16 08:10:27,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:27" (1/1) ... [2023-12-16 08:10:27,570 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:27" (1/1) ... [2023-12-16 08:10:27,590 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 08:10:27,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:27" (1/1) ... [2023-12-16 08:10:27,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:27" (1/1) ... [2023-12-16 08:10:27,603 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:27" (1/1) ... [2023-12-16 08:10:27,612 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:27" (1/1) ... [2023-12-16 08:10:27,626 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:27" (1/1) ... [2023-12-16 08:10:27,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:27" (1/1) ... [2023-12-16 08:10:27,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:10:27,641 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:10:27,641 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:10:27,641 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:10:27,642 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:27" (1/1) ... [2023-12-16 08:10:27,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:10:27,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:10:27,681 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 08:10:27,701 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 08:10:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:10:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 08:10:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 08:10:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-16 08:10:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-16 08:10:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-16 08:10:27,718 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-16 08:10:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-16 08:10:27,718 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-16 08:10:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-16 08:10:27,718 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-16 08:10:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-16 08:10:27,718 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-16 08:10:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-16 08:10:27,718 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-16 08:10:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-16 08:10:27,719 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-16 08:10:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:10:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-16 08:10:27,719 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-16 08:10:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-16 08:10:27,720 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-16 08:10:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-16 08:10:27,721 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-16 08:10:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-16 08:10:27,722 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-16 08:10:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-16 08:10:27,722 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-16 08:10:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:10:27,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:10:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-16 08:10:27,722 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-16 08:10:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2023-12-16 08:10:27,723 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2023-12-16 08:10:27,854 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:10:27,857 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:10:28,529 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:10:28,575 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:10:28,575 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2023-12-16 08:10:28,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:10:28 BoogieIcfgContainer [2023-12-16 08:10:28,576 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:10:28,577 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:10:28,578 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:10:28,580 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:10:28,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:10:27" (1/3) ... [2023-12-16 08:10:28,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f25541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:10:28, skipping insertion in model container [2023-12-16 08:10:28,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:27" (2/3) ... [2023-12-16 08:10:28,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f25541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:10:28, skipping insertion in model container [2023-12-16 08:10:28,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:10:28" (3/3) ... [2023-12-16 08:10:28,583 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.05.cil-2.c [2023-12-16 08:10:28,599 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:10:28,599 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 08:10:28,644 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:10:28,649 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;@42453657, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:10:28,650 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 08:10:28,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 286 states, 233 states have (on average 1.6824034334763949) internal successors, (392), 241 states have internal predecessors, (392), 35 states have call successors, (35), 15 states have call predecessors, (35), 15 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-16 08:10:28,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:10:28,663 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:28,664 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 08:10:28,665 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:28,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:28,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1937458787, now seen corresponding path program 1 times [2023-12-16 08:10:28,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:28,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167389774] [2023-12-16 08:10:28,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:28,679 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 08:10:28,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:28,680 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 08:10:28,682 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 08:10:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:28,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:10:28,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:28,846 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 08:10:28,847 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:28,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:28,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167389774] [2023-12-16 08:10:28,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167389774] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:28,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:28,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:10:28,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747213169] [2023-12-16 08:10:28,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:28,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:10:28,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:28,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:10:28,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:10:28,890 INFO L87 Difference]: Start difference. First operand has 286 states, 233 states have (on average 1.6824034334763949) internal successors, (392), 241 states have internal predecessors, (392), 35 states have call successors, (35), 15 states have call predecessors, (35), 15 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:10:29,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:29,040 INFO L93 Difference]: Finished difference Result 554 states and 893 transitions. [2023-12-16 08:10:29,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:10:29,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-16 08:10:29,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:29,060 INFO L225 Difference]: With dead ends: 554 [2023-12-16 08:10:29,060 INFO L226 Difference]: Without dead ends: 280 [2023-12-16 08:10:29,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:10:29,072 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 118 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:29,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 678 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:10:29,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-12-16 08:10:29,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2023-12-16 08:10:29,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 230 states have (on average 1.565217391304348) internal successors, (360), 235 states have internal predecessors, (360), 35 states have call successors, (35), 15 states have call predecessors, (35), 13 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-16 08:10:29,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 426 transitions. [2023-12-16 08:10:29,151 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 426 transitions. Word has length 58 [2023-12-16 08:10:29,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:29,155 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 426 transitions. [2023-12-16 08:10:29,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:10:29,155 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 426 transitions. [2023-12-16 08:10:29,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:10:29,165 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:29,165 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 08:10:29,173 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 08:10:29,369 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 08:10:29,370 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:29,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:29,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1876428251, now seen corresponding path program 1 times [2023-12-16 08:10:29,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:29,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265022405] [2023-12-16 08:10:29,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:29,372 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 08:10:29,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:29,374 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 08:10:29,377 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 08:10:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:29,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 08:10:29,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:29,558 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 08:10:29,559 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:29,559 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:29,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265022405] [2023-12-16 08:10:29,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265022405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:29,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:29,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 08:10:29,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86126326] [2023-12-16 08:10:29,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:29,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:29,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:29,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:29,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:29,563 INFO L87 Difference]: Start difference. First operand 280 states and 426 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 08:10:30,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:30,360 INFO L93 Difference]: Finished difference Result 456 states and 679 transitions. [2023-12-16 08:10:30,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:10:30,361 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 08:10:30,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:30,365 INFO L225 Difference]: With dead ends: 456 [2023-12-16 08:10:30,365 INFO L226 Difference]: Without dead ends: 375 [2023-12-16 08:10:30,366 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 08:10:30,367 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 313 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:30,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 842 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 08:10:30,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-12-16 08:10:30,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 368. [2023-12-16 08:10:30,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 298 states have (on average 1.5302013422818792) internal successors, (456), 305 states have internal predecessors, (456), 46 states have call successors, (46), 22 states have call predecessors, (46), 22 states have return successors, (47), 43 states have call predecessors, (47), 42 states have call successors, (47) [2023-12-16 08:10:30,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 549 transitions. [2023-12-16 08:10:30,411 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 549 transitions. Word has length 58 [2023-12-16 08:10:30,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:30,411 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 549 transitions. [2023-12-16 08:10:30,411 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 08:10:30,412 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 549 transitions. [2023-12-16 08:10:30,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:10:30,421 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:30,421 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 08:10:30,427 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 08:10:30,626 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 08:10:30,626 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:30,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:30,628 INFO L85 PathProgramCache]: Analyzing trace with hash -2010661915, now seen corresponding path program 1 times [2023-12-16 08:10:30,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:30,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762301195] [2023-12-16 08:10:30,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:30,629 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 08:10:30,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:30,630 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 08:10:30,639 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 08:10:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:30,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:10:30,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:30,765 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 08:10:30,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:30,766 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:30,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1762301195] [2023-12-16 08:10:30,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1762301195] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:30,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:30,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 08:10:30,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293226189] [2023-12-16 08:10:30,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:30,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:30,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:30,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:30,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:30,768 INFO L87 Difference]: Start difference. First operand 368 states and 549 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 08:10:31,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:31,463 INFO L93 Difference]: Finished difference Result 727 states and 1068 transitions. [2023-12-16 08:10:31,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:10:31,463 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 08:10:31,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:31,467 INFO L225 Difference]: With dead ends: 727 [2023-12-16 08:10:31,468 INFO L226 Difference]: Without dead ends: 563 [2023-12-16 08:10:31,469 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 08:10:31,470 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 305 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:31,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 846 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 08:10:31,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-12-16 08:10:31,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 555. [2023-12-16 08:10:31,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 441 states have (on average 1.4784580498866213) internal successors, (652), 456 states have internal predecessors, (652), 68 states have call successors, (68), 36 states have call predecessors, (68), 44 states have return successors, (89), 67 states have call predecessors, (89), 64 states have call successors, (89) [2023-12-16 08:10:31,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 809 transitions. [2023-12-16 08:10:31,518 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 809 transitions. Word has length 58 [2023-12-16 08:10:31,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:31,519 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 809 transitions. [2023-12-16 08:10:31,519 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 08:10:31,519 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 809 transitions. [2023-12-16 08:10:31,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:10:31,521 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:31,521 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 08:10:31,528 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 08:10:31,725 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 08:10:31,726 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:31,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:31,726 INFO L85 PathProgramCache]: Analyzing trace with hash 340312613, now seen corresponding path program 1 times [2023-12-16 08:10:31,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:31,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565287194] [2023-12-16 08:10:31,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:31,727 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 08:10:31,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:31,729 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 08:10:31,733 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 08:10:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:31,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:10:31,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:31,865 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 08:10:31,866 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:31,866 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:31,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1565287194] [2023-12-16 08:10:31,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1565287194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:31,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:31,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:10:31,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109489119] [2023-12-16 08:10:31,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:31,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:10:31,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:31,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:10:31,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:10:31,869 INFO L87 Difference]: Start difference. First operand 555 states and 809 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 08:10:32,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:32,021 INFO L93 Difference]: Finished difference Result 910 states and 1306 transitions. [2023-12-16 08:10:32,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:10:32,022 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 08:10:32,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:32,025 INFO L225 Difference]: With dead ends: 910 [2023-12-16 08:10:32,025 INFO L226 Difference]: Without dead ends: 573 [2023-12-16 08:10:32,027 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 08:10:32,027 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 6 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:32,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1960 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:10:32,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2023-12-16 08:10:32,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 563. [2023-12-16 08:10:32,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 447 states have (on average 1.4675615212527964) internal successors, (656), 462 states have internal predecessors, (656), 68 states have call successors, (68), 36 states have call predecessors, (68), 46 states have return successors, (91), 69 states have call predecessors, (91), 64 states have call successors, (91) [2023-12-16 08:10:32,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 815 transitions. [2023-12-16 08:10:32,069 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 815 transitions. Word has length 58 [2023-12-16 08:10:32,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:32,070 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 815 transitions. [2023-12-16 08:10:32,070 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 08:10:32,070 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 815 transitions. [2023-12-16 08:10:32,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:10:32,072 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:32,072 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 08:10:32,083 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 08:10:32,276 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 08:10:32,276 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:32,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:32,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1903670685, now seen corresponding path program 1 times [2023-12-16 08:10:32,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:32,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042129566] [2023-12-16 08:10:32,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:32,278 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 08:10:32,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:32,279 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 08:10:32,283 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 08:10:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:32,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:10:32,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:32,397 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 08:10:32,398 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:32,398 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:32,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042129566] [2023-12-16 08:10:32,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042129566] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:32,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:32,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:10:32,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650273940] [2023-12-16 08:10:32,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:32,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:10:32,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:32,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:10:32,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:10:32,400 INFO L87 Difference]: Start difference. First operand 563 states and 815 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 08:10:32,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:32,551 INFO L93 Difference]: Finished difference Result 920 states and 1308 transitions. [2023-12-16 08:10:32,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:10:32,551 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 08:10:32,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:32,555 INFO L225 Difference]: With dead ends: 920 [2023-12-16 08:10:32,555 INFO L226 Difference]: Without dead ends: 575 [2023-12-16 08:10:32,556 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 08:10:32,557 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 3 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:32,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1960 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:10:32,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-12-16 08:10:32,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 571. [2023-12-16 08:10:32,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 453 states have (on average 1.4569536423841059) internal successors, (660), 468 states have internal predecessors, (660), 68 states have call successors, (68), 36 states have call predecessors, (68), 48 states have return successors, (93), 71 states have call predecessors, (93), 64 states have call successors, (93) [2023-12-16 08:10:32,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 821 transitions. [2023-12-16 08:10:32,592 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 821 transitions. Word has length 58 [2023-12-16 08:10:32,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:32,592 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 821 transitions. [2023-12-16 08:10:32,592 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 08:10:32,593 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 821 transitions. [2023-12-16 08:10:32,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:10:32,594 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:32,594 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 08:10:32,603 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 08:10:32,798 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 08:10:32,799 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:32,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:32,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1841631071, now seen corresponding path program 1 times [2023-12-16 08:10:32,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:32,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [358016924] [2023-12-16 08:10:32,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:32,800 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 08:10:32,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:32,801 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 08:10:32,802 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 08:10:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:32,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:32,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:32,934 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 08:10:32,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:32,935 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:32,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [358016924] [2023-12-16 08:10:32,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [358016924] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:32,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:32,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:32,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530386235] [2023-12-16 08:10:32,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:32,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:10:32,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:32,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:10:32,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:10:32,937 INFO L87 Difference]: Start difference. First operand 571 states and 821 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 08:10:33,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:33,407 INFO L93 Difference]: Finished difference Result 1269 states and 1764 transitions. [2023-12-16 08:10:33,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:10:33,407 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 08:10:33,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:33,411 INFO L225 Difference]: With dead ends: 1269 [2023-12-16 08:10:33,411 INFO L226 Difference]: Without dead ends: 920 [2023-12-16 08:10:33,412 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 08:10:33,412 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 562 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:33,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 449 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:10:33,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2023-12-16 08:10:33,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 916. [2023-12-16 08:10:33,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 708 states have (on average 1.3997175141242937) internal successors, (991), 738 states have internal predecessors, (991), 114 states have call successors, (114), 64 states have call predecessors, (114), 92 states have return successors, (178), 122 states have call predecessors, (178), 110 states have call successors, (178) [2023-12-16 08:10:33,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1283 transitions. [2023-12-16 08:10:33,472 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1283 transitions. Word has length 58 [2023-12-16 08:10:33,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:33,473 INFO L495 AbstractCegarLoop]: Abstraction has 916 states and 1283 transitions. [2023-12-16 08:10:33,476 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 08:10:33,476 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1283 transitions. [2023-12-16 08:10:33,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 08:10:33,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:33,480 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 08:10:33,487 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 08:10:33,687 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 08:10:33,687 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:33,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:33,688 INFO L85 PathProgramCache]: Analyzing trace with hash 96612606, now seen corresponding path program 1 times [2023-12-16 08:10:33,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:33,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725253379] [2023-12-16 08:10:33,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:33,688 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 08:10:33,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:33,690 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 08:10:33,690 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 08:10:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:33,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:10:33,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:33,841 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 08:10:33,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:33,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:33,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725253379] [2023-12-16 08:10:33,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725253379] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:33,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:33,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:10:33,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653090943] [2023-12-16 08:10:33,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:33,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:10:33,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:33,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:10:33,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:10:33,844 INFO L87 Difference]: Start difference. First operand 916 states and 1283 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 08:10:33,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:33,974 INFO L93 Difference]: Finished difference Result 2230 states and 3054 transitions. [2023-12-16 08:10:33,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:10:33,975 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 08:10:33,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:33,982 INFO L225 Difference]: With dead ends: 2230 [2023-12-16 08:10:33,982 INFO L226 Difference]: Without dead ends: 1548 [2023-12-16 08:10:33,984 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 08:10:33,984 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 364 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:33,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 500 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:10:33,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2023-12-16 08:10:34,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1504. [2023-12-16 08:10:34,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1148 states have (on average 1.352787456445993) internal successors, (1553), 1200 states have internal predecessors, (1553), 180 states have call successors, (180), 120 states have call predecessors, (180), 174 states have return successors, (292), 192 states have call predecessors, (292), 176 states have call successors, (292) [2023-12-16 08:10:34,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 2025 transitions. [2023-12-16 08:10:34,116 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 2025 transitions. Word has length 59 [2023-12-16 08:10:34,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:34,121 INFO L495 AbstractCegarLoop]: Abstraction has 1504 states and 2025 transitions. [2023-12-16 08:10:34,121 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 08:10:34,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 2025 transitions. [2023-12-16 08:10:34,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 08:10:34,125 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:34,126 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 08:10:34,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 08:10:34,330 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 08:10:34,331 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:34,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:34,332 INFO L85 PathProgramCache]: Analyzing trace with hash -211387079, now seen corresponding path program 1 times [2023-12-16 08:10:34,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:34,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [132547024] [2023-12-16 08:10:34,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:34,333 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 08:10:34,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:34,335 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 08:10:34,367 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 08:10:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:34,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:10:34,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:34,483 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 08:10:34,483 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:34,483 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:34,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [132547024] [2023-12-16 08:10:34,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [132547024] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:34,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:34,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:10:34,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081973523] [2023-12-16 08:10:34,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:34,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:10:34,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:34,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:10:34,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:10:34,485 INFO L87 Difference]: Start difference. First operand 1504 states and 2025 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 08:10:34,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:34,694 INFO L93 Difference]: Finished difference Result 3920 states and 5192 transitions. [2023-12-16 08:10:34,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:10:34,695 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 08:10:34,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:34,707 INFO L225 Difference]: With dead ends: 3920 [2023-12-16 08:10:34,708 INFO L226 Difference]: Without dead ends: 2622 [2023-12-16 08:10:34,714 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 08:10:34,715 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 62 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:34,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 756 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:10:34,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2622 states. [2023-12-16 08:10:34,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2622 to 2590. [2023-12-16 08:10:34,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2590 states, 1966 states have (on average 1.3214649033570702) internal successors, (2598), 2039 states have internal predecessors, (2598), 300 states have call successors, (300), 232 states have call predecessors, (300), 322 states have return successors, (470), 323 states have call predecessors, (470), 296 states have call successors, (470) [2023-12-16 08:10:34,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2590 states to 2590 states and 3368 transitions. [2023-12-16 08:10:34,897 INFO L78 Accepts]: Start accepts. Automaton has 2590 states and 3368 transitions. Word has length 60 [2023-12-16 08:10:34,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:34,897 INFO L495 AbstractCegarLoop]: Abstraction has 2590 states and 3368 transitions. [2023-12-16 08:10:34,897 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 08:10:34,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2590 states and 3368 transitions. [2023-12-16 08:10:34,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 08:10:34,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:34,899 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 08:10:34,903 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 08:10:35,103 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 08:10:35,103 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:35,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:35,104 INFO L85 PathProgramCache]: Analyzing trace with hash 630938584, now seen corresponding path program 1 times [2023-12-16 08:10:35,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:35,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848731226] [2023-12-16 08:10:35,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:35,104 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:10:35,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:35,106 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 08:10:35,138 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 08:10:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:35,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:10:35,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:35,242 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 08:10:35,243 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:35,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:35,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848731226] [2023-12-16 08:10:35,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848731226] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:35,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:35,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:10:35,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809120046] [2023-12-16 08:10:35,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:35,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:10:35,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:35,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:10:35,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:10:35,246 INFO L87 Difference]: Start difference. First operand 2590 states and 3368 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 08:10:35,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:35,480 INFO L93 Difference]: Finished difference Result 5526 states and 7106 transitions. [2023-12-16 08:10:35,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:10:35,480 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 08:10:35,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:35,494 INFO L225 Difference]: With dead ends: 5526 [2023-12-16 08:10:35,494 INFO L226 Difference]: Without dead ends: 3150 [2023-12-16 08:10:35,500 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 08:10:35,501 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 359 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:35,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 500 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:10:35,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3150 states. [2023-12-16 08:10:35,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3150 to 3106. [2023-12-16 08:10:35,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3106 states, 2354 states have (on average 1.3041631265930331) internal successors, (3070), 2435 states have internal predecessors, (3070), 364 states have call successors, (364), 288 states have call predecessors, (364), 386 states have return successors, (553), 387 states have call predecessors, (553), 360 states have call successors, (553) [2023-12-16 08:10:35,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3106 states to 3106 states and 3987 transitions. [2023-12-16 08:10:35,693 INFO L78 Accepts]: Start accepts. Automaton has 3106 states and 3987 transitions. Word has length 66 [2023-12-16 08:10:35,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:35,693 INFO L495 AbstractCegarLoop]: Abstraction has 3106 states and 3987 transitions. [2023-12-16 08:10:35,703 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 08:10:35,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3106 states and 3987 transitions. [2023-12-16 08:10:35,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 08:10:35,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:35,705 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 08:10:35,712 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 08:10:35,909 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 08:10:35,910 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:35,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:35,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1862777236, now seen corresponding path program 1 times [2023-12-16 08:10:35,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:35,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208638765] [2023-12-16 08:10:35,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:35,911 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 08:10:35,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:35,912 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 08:10:35,917 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 08:10:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:35,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:35,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:36,013 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 08:10:36,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:36,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:36,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208638765] [2023-12-16 08:10:36,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208638765] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:36,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:36,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:36,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290057744] [2023-12-16 08:10:36,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:36,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:10:36,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:36,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:10:36,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:10:36,017 INFO L87 Difference]: Start difference. First operand 3106 states and 3987 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 08:10:36,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:36,397 INFO L93 Difference]: Finished difference Result 3726 states and 4760 transitions. [2023-12-16 08:10:36,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:10:36,397 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 08:10:36,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:36,413 INFO L225 Difference]: With dead ends: 3726 [2023-12-16 08:10:36,413 INFO L226 Difference]: Without dead ends: 3723 [2023-12-16 08:10:36,414 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 08:10:36,415 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 773 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:36,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 483 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 08:10:36,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3723 states. [2023-12-16 08:10:36,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3723 to 3689. [2023-12-16 08:10:36,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3689 states, 2792 states have (on average 1.2962034383954155) internal successors, (3619), 2887 states have internal predecessors, (3619), 429 states have call successors, (429), 344 states have call predecessors, (429), 466 states have return successors, (656), 462 states have call predecessors, (656), 426 states have call successors, (656) [2023-12-16 08:10:36,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3689 states to 3689 states and 4704 transitions. [2023-12-16 08:10:36,666 INFO L78 Accepts]: Start accepts. Automaton has 3689 states and 4704 transitions. Word has length 67 [2023-12-16 08:10:36,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:36,666 INFO L495 AbstractCegarLoop]: Abstraction has 3689 states and 4704 transitions. [2023-12-16 08:10:36,666 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 08:10:36,667 INFO L276 IsEmpty]: Start isEmpty. Operand 3689 states and 4704 transitions. [2023-12-16 08:10:36,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 08:10:36,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:36,668 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 08:10:36,679 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 08:10:36,873 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 08:10:36,873 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:36,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:36,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1910565794, now seen corresponding path program 1 times [2023-12-16 08:10:36,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:36,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1081722834] [2023-12-16 08:10:36,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:36,874 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 08:10:36,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:36,876 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 08:10:36,887 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 08:10:36,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:36,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:10:36,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:37,212 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 08:10:37,212 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 08:10:37,321 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 08:10:37,321 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:37,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1081722834] [2023-12-16 08:10:37,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1081722834] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 08:10:37,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 08:10:37,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2023-12-16 08:10:37,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380266733] [2023-12-16 08:10:37,322 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 08:10:37,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 08:10:37,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:37,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 08:10:37,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-16 08:10:37,323 INFO L87 Difference]: Start difference. First operand 3689 states and 4704 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 08:10:38,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:38,271 INFO L93 Difference]: Finished difference Result 8228 states and 10460 transitions. [2023-12-16 08:10:38,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:10:38,272 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 08:10:38,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:38,309 INFO L225 Difference]: With dead ends: 8228 [2023-12-16 08:10:38,309 INFO L226 Difference]: Without dead ends: 8225 [2023-12-16 08:10:38,314 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 08:10:38,314 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 774 mSDsluCounter, 1437 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:38,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 1994 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:10:38,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8225 states. [2023-12-16 08:10:38,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8225 to 6043. [2023-12-16 08:10:38,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6043 states, 4566 states have (on average 1.291940429259746) internal successors, (5899), 4727 states have internal predecessors, (5899), 693 states have call successors, (693), 568 states have call predecessors, (693), 782 states have return successors, (1090), 752 states have call predecessors, (1090), 690 states have call successors, (1090) [2023-12-16 08:10:38,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6043 states to 6043 states and 7682 transitions. [2023-12-16 08:10:38,878 INFO L78 Accepts]: Start accepts. Automaton has 6043 states and 7682 transitions. Word has length 68 [2023-12-16 08:10:38,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:38,879 INFO L495 AbstractCegarLoop]: Abstraction has 6043 states and 7682 transitions. [2023-12-16 08:10:38,879 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 08:10:38,879 INFO L276 IsEmpty]: Start isEmpty. Operand 6043 states and 7682 transitions. [2023-12-16 08:10:38,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 08:10:38,881 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:38,882 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 08:10:38,888 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 08:10:39,086 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 08:10:39,086 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:39,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:39,087 INFO L85 PathProgramCache]: Analyzing trace with hash -386332780, now seen corresponding path program 2 times [2023-12-16 08:10:39,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:39,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893495483] [2023-12-16 08:10:39,087 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 08:10:39,087 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:10:39,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:39,088 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 08:10:39,090 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 08:10:39,169 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 08:10:39,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 08:10:39,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:10:39,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:39,181 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 08:10:39,181 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:39,182 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:39,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893495483] [2023-12-16 08:10:39,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [893495483] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:39,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:39,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:10:39,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968605717] [2023-12-16 08:10:39,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:39,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:10:39,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:39,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:10:39,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:10:39,183 INFO L87 Difference]: Start difference. First operand 6043 states and 7682 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 08:10:39,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:39,552 INFO L93 Difference]: Finished difference Result 9014 states and 11538 transitions. [2023-12-16 08:10:39,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:10:39,553 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 08:10:39,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:39,571 INFO L225 Difference]: With dead ends: 9014 [2023-12-16 08:10:39,571 INFO L226 Difference]: Without dead ends: 3711 [2023-12-16 08:10:39,584 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 08:10:39,585 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 396 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:39,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 557 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:10:39,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3711 states. [2023-12-16 08:10:39,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3711 to 3687. [2023-12-16 08:10:39,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3687 states, 2794 states have (on average 1.2788117394416607) internal successors, (3573), 2885 states have internal predecessors, (3573), 429 states have call successors, (429), 344 states have call predecessors, (429), 462 states have return successors, (624), 462 states have call predecessors, (624), 426 states have call successors, (624) [2023-12-16 08:10:39,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 4626 transitions. [2023-12-16 08:10:39,922 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 4626 transitions. Word has length 71 [2023-12-16 08:10:39,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:39,922 INFO L495 AbstractCegarLoop]: Abstraction has 3687 states and 4626 transitions. [2023-12-16 08:10:39,923 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 08:10:39,923 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 4626 transitions. [2023-12-16 08:10:39,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-16 08:10:39,925 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:39,925 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 08:10:39,935 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 08:10:40,129 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 08:10:40,129 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:40,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:40,130 INFO L85 PathProgramCache]: Analyzing trace with hash 492720875, now seen corresponding path program 1 times [2023-12-16 08:10:40,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:40,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225839869] [2023-12-16 08:10:40,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:40,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:10:40,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:40,132 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 08:10:40,133 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 08:10:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:40,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:10:40,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:40,229 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 08:10:40,229 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:40,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:40,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225839869] [2023-12-16 08:10:40,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [225839869] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:40,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:40,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:10:40,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104389600] [2023-12-16 08:10:40,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:40,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:10:40,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:40,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:10:40,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:10:40,244 INFO L87 Difference]: Start difference. First operand 3687 states and 4626 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 08:10:40,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:40,656 INFO L93 Difference]: Finished difference Result 7460 states and 9343 transitions. [2023-12-16 08:10:40,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:10:40,657 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 08:10:40,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:40,692 INFO L225 Difference]: With dead ends: 7460 [2023-12-16 08:10:40,692 INFO L226 Difference]: Without dead ends: 5335 [2023-12-16 08:10:40,698 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 08:10:40,699 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 77 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:40,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 847 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:10:40,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5335 states. [2023-12-16 08:10:41,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5335 to 5335. [2023-12-16 08:10:41,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 4004 states have (on average 1.2602397602397601) internal successors, (5046), 4140 states have internal predecessors, (5046), 627 states have call successors, (627), 512 states have call predecessors, (627), 702 states have return successors, (948), 687 states have call predecessors, (948), 624 states have call successors, (948) [2023-12-16 08:10:41,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 6621 transitions. [2023-12-16 08:10:41,100 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 6621 transitions. Word has length 76 [2023-12-16 08:10:41,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:41,101 INFO L495 AbstractCegarLoop]: Abstraction has 5335 states and 6621 transitions. [2023-12-16 08:10:41,101 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 08:10:41,101 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 6621 transitions. [2023-12-16 08:10:41,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 08:10:41,104 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:41,104 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 08:10:41,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 08:10:41,308 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 08:10:41,309 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:41,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:41,309 INFO L85 PathProgramCache]: Analyzing trace with hash -509570349, now seen corresponding path program 1 times [2023-12-16 08:10:41,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:41,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892173336] [2023-12-16 08:10:41,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:41,310 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 08:10:41,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:41,311 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 08:10:41,312 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 08:10:41,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:41,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:41,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:41,466 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 08:10:41,467 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:41,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:41,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892173336] [2023-12-16 08:10:41,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892173336] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:41,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:41,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:41,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202814727] [2023-12-16 08:10:41,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:41,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:10:41,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:41,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:10:41,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:10:41,469 INFO L87 Difference]: Start difference. First operand 5335 states and 6621 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 08:10:42,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:42,355 INFO L93 Difference]: Finished difference Result 10482 states and 12953 transitions. [2023-12-16 08:10:42,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:10:42,356 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 08:10:42,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:42,377 INFO L225 Difference]: With dead ends: 10482 [2023-12-16 08:10:42,377 INFO L226 Difference]: Without dead ends: 5365 [2023-12-16 08:10:42,389 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 08:10:42,389 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 543 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:42,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 433 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:10:42,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5365 states. [2023-12-16 08:10:42,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5365 to 5365. [2023-12-16 08:10:42,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5365 states, 4019 states have (on average 1.2428464792236875) internal successors, (4995), 4170 states have internal predecessors, (4995), 627 states have call successors, (627), 512 states have call predecessors, (627), 717 states have return successors, (948), 687 states have call predecessors, (948), 624 states have call successors, (948) [2023-12-16 08:10:42,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5365 states to 5365 states and 6570 transitions. [2023-12-16 08:10:42,895 INFO L78 Accepts]: Start accepts. Automaton has 5365 states and 6570 transitions. Word has length 85 [2023-12-16 08:10:42,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:42,895 INFO L495 AbstractCegarLoop]: Abstraction has 5365 states and 6570 transitions. [2023-12-16 08:10:42,895 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 08:10:42,896 INFO L276 IsEmpty]: Start isEmpty. Operand 5365 states and 6570 transitions. [2023-12-16 08:10:42,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 08:10:42,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:42,899 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 08:10:42,904 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 08:10:43,103 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 08:10:43,104 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:43,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:43,104 INFO L85 PathProgramCache]: Analyzing trace with hash 533862617, now seen corresponding path program 1 times [2023-12-16 08:10:43,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:43,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136724033] [2023-12-16 08:10:43,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:43,105 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 08:10:43,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:43,106 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 08:10:43,109 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 08:10:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:43,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:10:43,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:43,196 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 08:10:43,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:43,197 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:43,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136724033] [2023-12-16 08:10:43,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1136724033] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:43,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:43,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:10:43,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92904385] [2023-12-16 08:10:43,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:43,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:10:43,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:43,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:10:43,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:10:43,198 INFO L87 Difference]: Start difference. First operand 5365 states and 6570 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 08:10:43,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:43,631 INFO L93 Difference]: Finished difference Result 10271 states and 12508 transitions. [2023-12-16 08:10:43,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:10:43,632 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 08:10:43,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:43,654 INFO L225 Difference]: With dead ends: 10271 [2023-12-16 08:10:43,655 INFO L226 Difference]: Without dead ends: 5114 [2023-12-16 08:10:43,668 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 08:10:43,669 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 95 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:43,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 843 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:10:43,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5114 states. [2023-12-16 08:10:44,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5114 to 5111. [2023-12-16 08:10:44,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5111 states, 3835 states have (on average 1.229986962190352) internal successors, (4717), 3980 states have internal predecessors, (4717), 589 states have call successors, (589), 484 states have call predecessors, (589), 685 states have return successors, (831), 649 states have call predecessors, (831), 586 states have call successors, (831) [2023-12-16 08:10:44,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5111 states to 5111 states and 6137 transitions. [2023-12-16 08:10:44,101 INFO L78 Accepts]: Start accepts. Automaton has 5111 states and 6137 transitions. Word has length 86 [2023-12-16 08:10:44,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:44,102 INFO L495 AbstractCegarLoop]: Abstraction has 5111 states and 6137 transitions. [2023-12-16 08:10:44,102 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 08:10:44,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5111 states and 6137 transitions. [2023-12-16 08:10:44,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:10:44,104 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:44,104 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] [2023-12-16 08:10:44,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-16 08:10:44,311 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 08:10:44,312 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:44,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:44,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1696227257, now seen corresponding path program 1 times [2023-12-16 08:10:44,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:44,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [455794551] [2023-12-16 08:10:44,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:44,313 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 08:10:44,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:44,314 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 08:10:44,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 08:10:44,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:44,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:10:44,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:44,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:10:44,430 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:44,430 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:44,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [455794551] [2023-12-16 08:10:44,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [455794551] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:44,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:44,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:10:44,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115784493] [2023-12-16 08:10:44,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:44,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:10:44,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:44,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:10:44,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:10:44,432 INFO L87 Difference]: Start difference. First operand 5111 states and 6137 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:44,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:44,752 INFO L93 Difference]: Finished difference Result 5295 states and 6426 transitions. [2023-12-16 08:10:44,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:10:44,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-16 08:10:44,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:44,769 INFO L225 Difference]: With dead ends: 5295 [2023-12-16 08:10:44,769 INFO L226 Difference]: Without dead ends: 5111 [2023-12-16 08:10:44,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 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 08:10:44,774 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 293 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:44,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 501 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:10:44,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5111 states. [2023-12-16 08:10:45,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5111 to 5111. [2023-12-16 08:10:45,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5111 states, 3835 states have (on average 1.2297262059973924) internal successors, (4716), 3980 states have internal predecessors, (4716), 589 states have call successors, (589), 484 states have call predecessors, (589), 685 states have return successors, (831), 649 states have call predecessors, (831), 586 states have call successors, (831) [2023-12-16 08:10:45,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5111 states to 5111 states and 6136 transitions. [2023-12-16 08:10:45,202 INFO L78 Accepts]: Start accepts. Automaton has 5111 states and 6136 transitions. Word has length 92 [2023-12-16 08:10:45,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:45,202 INFO L495 AbstractCegarLoop]: Abstraction has 5111 states and 6136 transitions. [2023-12-16 08:10:45,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:45,202 INFO L276 IsEmpty]: Start isEmpty. Operand 5111 states and 6136 transitions. [2023-12-16 08:10:45,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:10:45,205 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:45,205 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] [2023-12-16 08:10:45,209 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 08:10:45,409 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 08:10:45,410 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:45,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:45,410 INFO L85 PathProgramCache]: Analyzing trace with hash 129469307, now seen corresponding path program 1 times [2023-12-16 08:10:45,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:45,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701645153] [2023-12-16 08:10:45,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:45,411 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 08:10:45,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:45,412 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 08:10:45,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 08:10:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:45,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:45,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:45,560 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 08:10:45,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:45,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:45,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701645153] [2023-12-16 08:10:45,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701645153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:45,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:45,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:45,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979966714] [2023-12-16 08:10:45,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:45,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:45,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:45,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:45,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:45,563 INFO L87 Difference]: Start difference. First operand 5111 states and 6136 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:46,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:46,512 INFO L93 Difference]: Finished difference Result 5494 states and 6747 transitions. [2023-12-16 08:10:46,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:10:46,513 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-16 08:10:46,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:46,528 INFO L225 Difference]: With dead ends: 5494 [2023-12-16 08:10:46,528 INFO L226 Difference]: Without dead ends: 5313 [2023-12-16 08:10:46,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 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 08:10:46,531 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 692 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:46,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 907 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:10:46,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5313 states. [2023-12-16 08:10:47,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5313 to 5296. [2023-12-16 08:10:47,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 3999 states have (on average 1.2455613903475868) internal successors, (4981), 4145 states have internal predecessors, (4981), 603 states have call successors, (603), 490 states have call predecessors, (603), 692 states have return successors, (846), 663 states have call predecessors, (846), 600 states have call successors, (846) [2023-12-16 08:10:47,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 6430 transitions. [2023-12-16 08:10:47,083 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 6430 transitions. Word has length 92 [2023-12-16 08:10:47,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:47,083 INFO L495 AbstractCegarLoop]: Abstraction has 5296 states and 6430 transitions. [2023-12-16 08:10:47,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:47,084 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 6430 transitions. [2023-12-16 08:10:47,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:10:47,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:47,088 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] [2023-12-16 08:10:47,093 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 08:10:47,293 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 08:10:47,293 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:47,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:47,294 INFO L85 PathProgramCache]: Analyzing trace with hash 968502969, now seen corresponding path program 1 times [2023-12-16 08:10:47,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:47,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372959353] [2023-12-16 08:10:47,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:47,295 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 08:10:47,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:47,297 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 08:10:47,332 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 08:10:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:47,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:47,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:47,452 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 08:10:47,452 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:47,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:47,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372959353] [2023-12-16 08:10:47,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372959353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:47,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:47,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:47,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685393618] [2023-12-16 08:10:47,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:47,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:47,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:47,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:47,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:47,454 INFO L87 Difference]: Start difference. First operand 5296 states and 6430 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:48,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:48,151 INFO L93 Difference]: Finished difference Result 5662 states and 7015 transitions. [2023-12-16 08:10:48,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:10:48,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-16 08:10:48,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:48,165 INFO L225 Difference]: With dead ends: 5662 [2023-12-16 08:10:48,165 INFO L226 Difference]: Without dead ends: 5296 [2023-12-16 08:10:48,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 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 08:10:48,167 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 538 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:48,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 621 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:10:48,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5296 states. [2023-12-16 08:10:48,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5296 to 5296. [2023-12-16 08:10:48,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 3999 states have (on average 1.2438109527381846) internal successors, (4974), 4145 states have internal predecessors, (4974), 603 states have call successors, (603), 490 states have call predecessors, (603), 692 states have return successors, (846), 663 states have call predecessors, (846), 600 states have call successors, (846) [2023-12-16 08:10:48,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 6423 transitions. [2023-12-16 08:10:48,559 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 6423 transitions. Word has length 92 [2023-12-16 08:10:48,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:48,559 INFO L495 AbstractCegarLoop]: Abstraction has 5296 states and 6423 transitions. [2023-12-16 08:10:48,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:48,560 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 6423 transitions. [2023-12-16 08:10:48,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:10:48,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:48,562 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] [2023-12-16 08:10:48,568 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 08:10:48,766 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 08:10:48,767 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:48,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:48,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1618307019, now seen corresponding path program 1 times [2023-12-16 08:10:48,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:48,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [236578705] [2023-12-16 08:10:48,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:48,768 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 08:10:48,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:48,769 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 08:10:48,770 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 08:10:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:48,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:48,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:48,912 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 08:10:48,912 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:48,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:48,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [236578705] [2023-12-16 08:10:48,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [236578705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:48,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:48,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:48,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25648992] [2023-12-16 08:10:48,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:48,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:48,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:48,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:48,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:48,914 INFO L87 Difference]: Start difference. First operand 5296 states and 6423 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:49,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:49,550 INFO L93 Difference]: Finished difference Result 5662 states and 7001 transitions. [2023-12-16 08:10:49,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:10:49,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-16 08:10:49,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:49,564 INFO L225 Difference]: With dead ends: 5662 [2023-12-16 08:10:49,565 INFO L226 Difference]: Without dead ends: 5296 [2023-12-16 08:10:49,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 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 08:10:49,567 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 532 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:49,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 614 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:10:49,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5296 states. [2023-12-16 08:10:50,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5296 to 5296. [2023-12-16 08:10:50,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 3999 states have (on average 1.2420605151287822) internal successors, (4967), 4145 states have internal predecessors, (4967), 603 states have call successors, (603), 490 states have call predecessors, (603), 692 states have return successors, (846), 663 states have call predecessors, (846), 600 states have call successors, (846) [2023-12-16 08:10:50,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 6416 transitions. [2023-12-16 08:10:50,031 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 6416 transitions. Word has length 92 [2023-12-16 08:10:50,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:50,032 INFO L495 AbstractCegarLoop]: Abstraction has 5296 states and 6416 transitions. [2023-12-16 08:10:50,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:50,032 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 6416 transitions. [2023-12-16 08:10:50,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:10:50,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:50,034 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] [2023-12-16 08:10:50,040 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 08:10:50,239 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 08:10:50,240 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:50,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:50,240 INFO L85 PathProgramCache]: Analyzing trace with hash 2039025465, now seen corresponding path program 1 times [2023-12-16 08:10:50,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:50,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225600392] [2023-12-16 08:10:50,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:50,241 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 08:10:50,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:50,242 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 08:10:50,244 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 08:10:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:50,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:50,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:50,370 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 08:10:50,370 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:50,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:50,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225600392] [2023-12-16 08:10:50,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [225600392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:50,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:50,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:50,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799794217] [2023-12-16 08:10:50,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:50,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:50,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:50,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:50,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:50,372 INFO L87 Difference]: Start difference. First operand 5296 states and 6416 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:51,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:51,053 INFO L93 Difference]: Finished difference Result 5662 states and 6987 transitions. [2023-12-16 08:10:51,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:10:51,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-16 08:10:51,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:51,067 INFO L225 Difference]: With dead ends: 5662 [2023-12-16 08:10:51,068 INFO L226 Difference]: Without dead ends: 5296 [2023-12-16 08:10:51,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 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 08:10:51,070 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 526 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:51,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 607 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:10:51,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5296 states. [2023-12-16 08:10:51,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5296 to 5296. [2023-12-16 08:10:51,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 3999 states have (on average 1.2403100775193798) internal successors, (4960), 4145 states have internal predecessors, (4960), 603 states have call successors, (603), 490 states have call predecessors, (603), 692 states have return successors, (846), 663 states have call predecessors, (846), 600 states have call successors, (846) [2023-12-16 08:10:51,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 6409 transitions. [2023-12-16 08:10:51,512 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 6409 transitions. Word has length 92 [2023-12-16 08:10:51,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:51,512 INFO L495 AbstractCegarLoop]: Abstraction has 5296 states and 6409 transitions. [2023-12-16 08:10:51,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:51,512 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 6409 transitions. [2023-12-16 08:10:51,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:10:51,514 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:51,514 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] [2023-12-16 08:10:51,522 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 (21)] Forceful destruction successful, exit code 0 [2023-12-16 08:10:51,718 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 08:10:51,719 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:51,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:51,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1306679371, now seen corresponding path program 1 times [2023-12-16 08:10:51,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:51,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44486949] [2023-12-16 08:10:51,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:51,720 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 08:10:51,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:51,721 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 08:10:51,722 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 08:10:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:51,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:51,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:51,860 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 08:10:51,860 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:51,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:51,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44486949] [2023-12-16 08:10:51,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44486949] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:51,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:51,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:51,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334789006] [2023-12-16 08:10:51,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:51,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:51,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:51,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:51,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:51,862 INFO L87 Difference]: Start difference. First operand 5296 states and 6409 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:52,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:52,553 INFO L93 Difference]: Finished difference Result 5662 states and 6973 transitions. [2023-12-16 08:10:52,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:10:52,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-16 08:10:52,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:52,570 INFO L225 Difference]: With dead ends: 5662 [2023-12-16 08:10:52,571 INFO L226 Difference]: Without dead ends: 5296 [2023-12-16 08:10:52,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 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 08:10:52,575 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 520 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:52,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 600 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:10:52,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5296 states. [2023-12-16 08:10:53,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5296 to 5296. [2023-12-16 08:10:53,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 3999 states have (on average 1.2385596399099774) internal successors, (4953), 4145 states have internal predecessors, (4953), 603 states have call successors, (603), 490 states have call predecessors, (603), 692 states have return successors, (846), 663 states have call predecessors, (846), 600 states have call successors, (846) [2023-12-16 08:10:53,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 6402 transitions. [2023-12-16 08:10:53,246 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 6402 transitions. Word has length 92 [2023-12-16 08:10:53,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:53,246 INFO L495 AbstractCegarLoop]: Abstraction has 5296 states and 6402 transitions. [2023-12-16 08:10:53,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:53,247 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 6402 transitions. [2023-12-16 08:10:53,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:10:53,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:53,248 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] [2023-12-16 08:10:53,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-16 08:10:53,453 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 08:10:53,453 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:53,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:53,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1217793977, now seen corresponding path program 1 times [2023-12-16 08:10:53,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:53,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493267307] [2023-12-16 08:10:53,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:53,454 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 08:10:53,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:53,456 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 08:10:53,457 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 08:10:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:53,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:53,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:53,585 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 08:10:53,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:53,585 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:53,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493267307] [2023-12-16 08:10:53,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493267307] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:53,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:53,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:53,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774842300] [2023-12-16 08:10:53,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:53,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:53,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:53,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:53,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:53,586 INFO L87 Difference]: Start difference. First operand 5296 states and 6402 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:54,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:54,357 INFO L93 Difference]: Finished difference Result 5744 states and 7091 transitions. [2023-12-16 08:10:54,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:10:54,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-16 08:10:54,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:54,373 INFO L225 Difference]: With dead ends: 5744 [2023-12-16 08:10:54,374 INFO L226 Difference]: Without dead ends: 5378 [2023-12-16 08:10:54,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 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 08:10:54,377 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 565 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:54,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 594 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:10:54,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5378 states. [2023-12-16 08:10:54,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5378 to 5378. [2023-12-16 08:10:54,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 4075 states have (on average 1.2407361963190184) internal successors, (5056), 4221 states have internal predecessors, (5056), 605 states have call successors, (605), 494 states have call predecessors, (605), 696 states have return successors, (848), 665 states have call predecessors, (848), 602 states have call successors, (848) [2023-12-16 08:10:54,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 6509 transitions. [2023-12-16 08:10:54,842 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 6509 transitions. Word has length 92 [2023-12-16 08:10:54,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:54,842 INFO L495 AbstractCegarLoop]: Abstraction has 5378 states and 6509 transitions. [2023-12-16 08:10:54,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:54,842 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 6509 transitions. [2023-12-16 08:10:54,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:10:54,844 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:54,844 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] [2023-12-16 08:10:54,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-16 08:10:55,048 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 08:10:55,048 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:55,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:55,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1160681269, now seen corresponding path program 1 times [2023-12-16 08:10:55,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:55,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281460428] [2023-12-16 08:10:55,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:55,049 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 08:10:55,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:55,050 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 08:10:55,053 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 08:10:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:55,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:55,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:55,175 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 08:10:55,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:55,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:55,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281460428] [2023-12-16 08:10:55,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [281460428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:55,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:55,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:55,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176842481] [2023-12-16 08:10:55,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:55,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:55,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:55,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:55,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:55,177 INFO L87 Difference]: Start difference. First operand 5378 states and 6509 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:55,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:55,960 INFO L93 Difference]: Finished difference Result 5908 states and 7305 transitions. [2023-12-16 08:10:55,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:10:55,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-16 08:10:55,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:55,972 INFO L225 Difference]: With dead ends: 5908 [2023-12-16 08:10:55,972 INFO L226 Difference]: Without dead ends: 5460 [2023-12-16 08:10:55,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 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 08:10:55,975 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 558 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:55,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 587 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:10:55,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5460 states. [2023-12-16 08:10:56,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5460 to 5460. [2023-12-16 08:10:56,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5460 states, 4151 states have (on average 1.2418694290532402) internal successors, (5155), 4297 states have internal predecessors, (5155), 607 states have call successors, (607), 498 states have call predecessors, (607), 700 states have return successors, (850), 667 states have call predecessors, (850), 604 states have call successors, (850) [2023-12-16 08:10:56,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5460 states to 5460 states and 6612 transitions. [2023-12-16 08:10:56,539 INFO L78 Accepts]: Start accepts. Automaton has 5460 states and 6612 transitions. Word has length 92 [2023-12-16 08:10:56,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:56,540 INFO L495 AbstractCegarLoop]: Abstraction has 5460 states and 6612 transitions. [2023-12-16 08:10:56,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:56,540 INFO L276 IsEmpty]: Start isEmpty. Operand 5460 states and 6612 transitions. [2023-12-16 08:10:56,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:10:56,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:56,541 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] [2023-12-16 08:10:56,546 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 08:10:56,742 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 08:10:56,742 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:56,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:56,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1371840390, now seen corresponding path program 1 times [2023-12-16 08:10:56,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:56,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160027650] [2023-12-16 08:10:56,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:56,743 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 08:10:56,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:56,744 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 08:10:56,745 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 08:10:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:56,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:56,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:56,876 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 08:10:56,876 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:56,876 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:56,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160027650] [2023-12-16 08:10:56,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160027650] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:56,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:56,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:56,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997340961] [2023-12-16 08:10:56,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:56,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:56,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:56,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:56,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:56,878 INFO L87 Difference]: Start difference. First operand 5460 states and 6612 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:57,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:57,700 INFO L93 Difference]: Finished difference Result 6072 states and 7511 transitions. [2023-12-16 08:10:57,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:10:57,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-16 08:10:57,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:57,710 INFO L225 Difference]: With dead ends: 6072 [2023-12-16 08:10:57,710 INFO L226 Difference]: Without dead ends: 5542 [2023-12-16 08:10:57,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 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 08:10:57,713 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 552 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:57,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 580 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:10:57,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5542 states. [2023-12-16 08:10:58,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5542 to 5542. [2023-12-16 08:10:58,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5542 states, 4227 states have (on average 1.242015613910575) internal successors, (5250), 4373 states have internal predecessors, (5250), 609 states have call successors, (609), 502 states have call predecessors, (609), 704 states have return successors, (852), 669 states have call predecessors, (852), 606 states have call successors, (852) [2023-12-16 08:10:58,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5542 states to 5542 states and 6711 transitions. [2023-12-16 08:10:58,212 INFO L78 Accepts]: Start accepts. Automaton has 5542 states and 6711 transitions. Word has length 92 [2023-12-16 08:10:58,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:58,212 INFO L495 AbstractCegarLoop]: Abstraction has 5542 states and 6711 transitions. [2023-12-16 08:10:58,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:58,212 INFO L276 IsEmpty]: Start isEmpty. Operand 5542 states and 6711 transitions. [2023-12-16 08:10:58,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:10:58,213 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:58,213 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] [2023-12-16 08:10:58,217 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 08:10:58,414 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 08:10:58,414 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:58,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:58,414 INFO L85 PathProgramCache]: Analyzing trace with hash 536617400, now seen corresponding path program 1 times [2023-12-16 08:10:58,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:58,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749263750] [2023-12-16 08:10:58,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:58,415 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 08:10:58,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:58,416 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 08:10:58,417 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 08:10:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:58,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:58,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:58,533 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 08:10:58,534 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:58,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:58,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749263750] [2023-12-16 08:10:58,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1749263750] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:58,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:58,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:58,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913215913] [2023-12-16 08:10:58,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:58,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:58,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:58,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:58,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:58,535 INFO L87 Difference]: Start difference. First operand 5542 states and 6711 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:59,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:59,417 INFO L93 Difference]: Finished difference Result 6236 states and 7709 transitions. [2023-12-16 08:10:59,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:10:59,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-16 08:10:59,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:59,426 INFO L225 Difference]: With dead ends: 6236 [2023-12-16 08:10:59,427 INFO L226 Difference]: Without dead ends: 5624 [2023-12-16 08:10:59,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 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 08:10:59,429 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 544 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:59,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 573 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:10:59,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5624 states. [2023-12-16 08:10:59,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5624 to 5624. [2023-12-16 08:10:59,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5624 states, 4303 states have (on average 1.2412270508947245) internal successors, (5341), 4449 states have internal predecessors, (5341), 611 states have call successors, (611), 506 states have call predecessors, (611), 708 states have return successors, (854), 671 states have call predecessors, (854), 608 states have call successors, (854) [2023-12-16 08:10:59,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5624 states to 5624 states and 6806 transitions. [2023-12-16 08:10:59,914 INFO L78 Accepts]: Start accepts. Automaton has 5624 states and 6806 transitions. Word has length 92 [2023-12-16 08:10:59,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:59,914 INFO L495 AbstractCegarLoop]: Abstraction has 5624 states and 6806 transitions. [2023-12-16 08:10:59,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:59,914 INFO L276 IsEmpty]: Start isEmpty. Operand 5624 states and 6806 transitions. [2023-12-16 08:10:59,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:10:59,915 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:59,916 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] [2023-12-16 08:10:59,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:00,120 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 08:11:00,120 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:00,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:00,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1482605293, now seen corresponding path program 1 times [2023-12-16 08:11:00,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:00,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1404552146] [2023-12-16 08:11:00,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:00,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:11:00,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:00,122 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 08:11:00,123 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 08:11:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:00,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:00,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:00,272 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 08:11:00,272 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:00,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:00,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1404552146] [2023-12-16 08:11:00,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1404552146] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:00,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:00,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:00,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573828711] [2023-12-16 08:11:00,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:00,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:11:00,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:00,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:11:00,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:11:00,275 INFO L87 Difference]: Start difference. First operand 5624 states and 6806 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:01,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:01,226 INFO L93 Difference]: Finished difference Result 6400 states and 7899 transitions. [2023-12-16 08:11:01,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:11:01,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-16 08:11:01,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:01,237 INFO L225 Difference]: With dead ends: 6400 [2023-12-16 08:11:01,237 INFO L226 Difference]: Without dead ends: 5706 [2023-12-16 08:11:01,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 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 08:11:01,240 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 537 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:01,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 566 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:11:01,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5706 states. [2023-12-16 08:11:01,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5706 to 5706. [2023-12-16 08:11:01,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5706 states, 4379 states have (on average 1.2395524092258507) internal successors, (5428), 4525 states have internal predecessors, (5428), 613 states have call successors, (613), 510 states have call predecessors, (613), 712 states have return successors, (856), 673 states have call predecessors, (856), 610 states have call successors, (856) [2023-12-16 08:11:01,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5706 states to 5706 states and 6897 transitions. [2023-12-16 08:11:01,828 INFO L78 Accepts]: Start accepts. Automaton has 5706 states and 6897 transitions. Word has length 92 [2023-12-16 08:11:01,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:01,828 INFO L495 AbstractCegarLoop]: Abstraction has 5706 states and 6897 transitions. [2023-12-16 08:11:01,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:01,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5706 states and 6897 transitions. [2023-12-16 08:11:01,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:11:01,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:01,830 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] [2023-12-16 08:11:01,834 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 08:11:02,032 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 08:11:02,032 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:02,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:02,033 INFO L85 PathProgramCache]: Analyzing trace with hash -92735465, now seen corresponding path program 1 times [2023-12-16 08:11:02,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:02,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239183443] [2023-12-16 08:11:02,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:02,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:11:02,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:02,034 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 08:11:02,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-16 08:11:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:02,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:02,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:02,132 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 08:11:02,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:02,132 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:02,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239183443] [2023-12-16 08:11:02,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1239183443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:02,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:02,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:02,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740366335] [2023-12-16 08:11:02,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:02,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:11:02,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:02,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:11:02,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:02,134 INFO L87 Difference]: Start difference. First operand 5706 states and 6897 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:02,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:02,794 INFO L93 Difference]: Finished difference Result 6549 states and 8060 transitions. [2023-12-16 08:11:02,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:11:02,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-16 08:11:02,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:02,810 INFO L225 Difference]: With dead ends: 6549 [2023-12-16 08:11:02,810 INFO L226 Difference]: Without dead ends: 5774 [2023-12-16 08:11:02,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:02,815 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 47 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:02,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1080 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:02,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5774 states. [2023-12-16 08:11:03,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5774 to 5710. [2023-12-16 08:11:03,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5710 states, 4383 states have (on average 1.2370522473191878) internal successors, (5422), 4529 states have internal predecessors, (5422), 613 states have call successors, (613), 510 states have call predecessors, (613), 712 states have return successors, (856), 673 states have call predecessors, (856), 610 states have call successors, (856) [2023-12-16 08:11:03,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5710 states to 5710 states and 6891 transitions. [2023-12-16 08:11:03,432 INFO L78 Accepts]: Start accepts. Automaton has 5710 states and 6891 transitions. Word has length 92 [2023-12-16 08:11:03,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:03,433 INFO L495 AbstractCegarLoop]: Abstraction has 5710 states and 6891 transitions. [2023-12-16 08:11:03,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:03,433 INFO L276 IsEmpty]: Start isEmpty. Operand 5710 states and 6891 transitions. [2023-12-16 08:11:03,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:11:03,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:03,434 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] [2023-12-16 08:11:03,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2023-12-16 08:11:03,634 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 08:11:03,635 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:03,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:03,635 INFO L85 PathProgramCache]: Analyzing trace with hash 467964313, now seen corresponding path program 1 times [2023-12-16 08:11:03,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:03,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261021010] [2023-12-16 08:11:03,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:03,635 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 08:11:03,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:03,636 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 08:11:03,637 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 08:11:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:03,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:03,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:03,738 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 08:11:03,738 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:03,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:03,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261021010] [2023-12-16 08:11:03,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261021010] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:03,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:03,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:03,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34005665] [2023-12-16 08:11:03,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:03,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:11:03,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:03,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:11:03,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:03,739 INFO L87 Difference]: Start difference. First operand 5710 states and 6891 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:04,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:04,297 INFO L93 Difference]: Finished difference Result 6545 states and 8032 transitions. [2023-12-16 08:11:04,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:11:04,297 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-16 08:11:04,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:04,312 INFO L225 Difference]: With dead ends: 6545 [2023-12-16 08:11:04,312 INFO L226 Difference]: Without dead ends: 5766 [2023-12-16 08:11:04,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:04,316 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 38 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:04,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 1084 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:04,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5766 states. [2023-12-16 08:11:04,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5766 to 5714. [2023-12-16 08:11:04,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5714 states, 4387 states have (on average 1.234556644631867) internal successors, (5416), 4533 states have internal predecessors, (5416), 613 states have call successors, (613), 510 states have call predecessors, (613), 712 states have return successors, (856), 673 states have call predecessors, (856), 610 states have call successors, (856) [2023-12-16 08:11:04,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5714 states to 5714 states and 6885 transitions. [2023-12-16 08:11:04,884 INFO L78 Accepts]: Start accepts. Automaton has 5714 states and 6885 transitions. Word has length 92 [2023-12-16 08:11:04,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:04,884 INFO L495 AbstractCegarLoop]: Abstraction has 5714 states and 6885 transitions. [2023-12-16 08:11:04,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:04,884 INFO L276 IsEmpty]: Start isEmpty. Operand 5714 states and 6885 transitions. [2023-12-16 08:11:04,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:11:04,885 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:04,885 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] [2023-12-16 08:11:04,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2023-12-16 08:11:05,085 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 08:11:05,086 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:05,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:05,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1343983319, now seen corresponding path program 1 times [2023-12-16 08:11:05,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:05,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189928300] [2023-12-16 08:11:05,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:05,087 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:11:05,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:05,087 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 08:11:05,088 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 08:11:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:05,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:05,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:05,175 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 08:11:05,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:05,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:05,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189928300] [2023-12-16 08:11:05,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [189928300] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:05,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:05,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:05,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760002867] [2023-12-16 08:11:05,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:05,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:11:05,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:05,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:11:05,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:05,176 INFO L87 Difference]: Start difference. First operand 5714 states and 6885 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:05,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:05,717 INFO L93 Difference]: Finished difference Result 6541 states and 8004 transitions. [2023-12-16 08:11:05,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:11:05,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-16 08:11:05,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:05,726 INFO L225 Difference]: With dead ends: 6541 [2023-12-16 08:11:05,727 INFO L226 Difference]: Without dead ends: 5758 [2023-12-16 08:11:05,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:05,729 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 29 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:05,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1082 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:05,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5758 states. [2023-12-16 08:11:06,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5758 to 5718. [2023-12-16 08:11:06,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5718 states, 4391 states have (on average 1.2320655887041676) internal successors, (5410), 4537 states have internal predecessors, (5410), 613 states have call successors, (613), 510 states have call predecessors, (613), 712 states have return successors, (856), 673 states have call predecessors, (856), 610 states have call successors, (856) [2023-12-16 08:11:06,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5718 states to 5718 states and 6879 transitions. [2023-12-16 08:11:06,285 INFO L78 Accepts]: Start accepts. Automaton has 5718 states and 6879 transitions. Word has length 92 [2023-12-16 08:11:06,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:06,286 INFO L495 AbstractCegarLoop]: Abstraction has 5718 states and 6879 transitions. [2023-12-16 08:11:06,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:06,286 INFO L276 IsEmpty]: Start isEmpty. Operand 5718 states and 6879 transitions. [2023-12-16 08:11:06,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:11:06,287 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:06,287 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] [2023-12-16 08:11:06,291 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 08:11:06,487 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 08:11:06,488 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:06,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:06,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1328464601, now seen corresponding path program 1 times [2023-12-16 08:11:06,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:06,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346961505] [2023-12-16 08:11:06,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:06,490 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 08:11:06,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:06,491 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 08:11:06,491 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 08:11:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:06,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:11:06,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:06,610 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 08:11:06,611 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:06,611 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:06,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [346961505] [2023-12-16 08:11:06,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [346961505] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:06,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:06,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:11:06,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043345026] [2023-12-16 08:11:06,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:06,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:11:06,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:06,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:11:06,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:11:06,613 INFO L87 Difference]: Start difference. First operand 5718 states and 6879 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:07,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:07,217 INFO L93 Difference]: Finished difference Result 7191 states and 8817 transitions. [2023-12-16 08:11:07,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:11:07,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-16 08:11:07,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:07,227 INFO L225 Difference]: With dead ends: 7191 [2023-12-16 08:11:07,227 INFO L226 Difference]: Without dead ends: 6404 [2023-12-16 08:11:07,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 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 08:11:07,230 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 338 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:07,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 631 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:07,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6404 states. [2023-12-16 08:11:07,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6404 to 6398. [2023-12-16 08:11:07,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6398 states, 5007 states have (on average 1.2404633513081686) internal successors, (6211), 5154 states have internal predecessors, (6211), 648 states have call successors, (648), 538 states have call predecessors, (648), 741 states have return successors, (892), 708 states have call predecessors, (892), 645 states have call successors, (892) [2023-12-16 08:11:07,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6398 states to 6398 states and 7751 transitions. [2023-12-16 08:11:07,822 INFO L78 Accepts]: Start accepts. Automaton has 6398 states and 7751 transitions. Word has length 92 [2023-12-16 08:11:07,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:07,822 INFO L495 AbstractCegarLoop]: Abstraction has 6398 states and 7751 transitions. [2023-12-16 08:11:07,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:07,823 INFO L276 IsEmpty]: Start isEmpty. Operand 6398 states and 7751 transitions. [2023-12-16 08:11:07,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:11:07,825 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:07,825 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] [2023-12-16 08:11:07,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2023-12-16 08:11:08,030 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 08:11:08,031 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:08,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:08,031 INFO L85 PathProgramCache]: Analyzing trace with hash -564977574, now seen corresponding path program 1 times [2023-12-16 08:11:08,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:08,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1563844247] [2023-12-16 08:11:08,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:08,032 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 08:11:08,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:08,033 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 08:11:08,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-16 08:11:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:08,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:08,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:08,126 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 08:11:08,126 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:08,126 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:08,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1563844247] [2023-12-16 08:11:08,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1563844247] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:08,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:08,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:08,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522083274] [2023-12-16 08:11:08,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:08,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:11:08,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:08,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:11:08,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:08,128 INFO L87 Difference]: Start difference. First operand 6398 states and 7751 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:08,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:08,708 INFO L93 Difference]: Finished difference Result 8057 states and 9958 transitions. [2023-12-16 08:11:08,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:11:08,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-16 08:11:08,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:08,720 INFO L225 Difference]: With dead ends: 8057 [2023-12-16 08:11:08,720 INFO L226 Difference]: Without dead ends: 6590 [2023-12-16 08:11:08,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:08,724 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 20 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:08,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1092 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:08,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2023-12-16 08:11:09,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 6422. [2023-12-16 08:11:09,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6422 states, 5031 states have (on average 1.2373285629099582) internal successors, (6225), 5178 states have internal predecessors, (6225), 648 states have call successors, (648), 538 states have call predecessors, (648), 741 states have return successors, (892), 708 states have call predecessors, (892), 645 states have call successors, (892) [2023-12-16 08:11:09,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6422 states to 6422 states and 7765 transitions. [2023-12-16 08:11:09,296 INFO L78 Accepts]: Start accepts. Automaton has 6422 states and 7765 transitions. Word has length 92 [2023-12-16 08:11:09,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:09,297 INFO L495 AbstractCegarLoop]: Abstraction has 6422 states and 7765 transitions. [2023-12-16 08:11:09,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:09,297 INFO L276 IsEmpty]: Start isEmpty. Operand 6422 states and 7765 transitions. [2023-12-16 08:11:09,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:11:09,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:09,298 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] [2023-12-16 08:11:09,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2023-12-16 08:11:09,498 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 08:11:09,499 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:09,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:09,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1680601880, now seen corresponding path program 1 times [2023-12-16 08:11:09,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:09,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118506131] [2023-12-16 08:11:09,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:09,500 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 08:11:09,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:09,501 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:11:09,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-16 08:11:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:09,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:09,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:09,593 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 08:11:09,593 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:09,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:09,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118506131] [2023-12-16 08:11:09,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118506131] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:09,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:09,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:09,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856482466] [2023-12-16 08:11:09,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:09,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:11:09,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:09,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:11:09,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:09,595 INFO L87 Difference]: Start difference. First operand 6422 states and 7765 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:10,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:10,185 INFO L93 Difference]: Finished difference Result 7933 states and 9753 transitions. [2023-12-16 08:11:10,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:11:10,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-16 08:11:10,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:10,197 INFO L225 Difference]: With dead ends: 7933 [2023-12-16 08:11:10,197 INFO L226 Difference]: Without dead ends: 6442 [2023-12-16 08:11:10,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:10,201 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 11 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:10,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1083 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:10,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6442 states. [2023-12-16 08:11:10,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6442 to 6426. [2023-12-16 08:11:10,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6426 states, 5035 states have (on average 1.233167825223436) internal successors, (6209), 5182 states have internal predecessors, (6209), 648 states have call successors, (648), 538 states have call predecessors, (648), 741 states have return successors, (892), 708 states have call predecessors, (892), 645 states have call successors, (892) [2023-12-16 08:11:10,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6426 states to 6426 states and 7749 transitions. [2023-12-16 08:11:10,773 INFO L78 Accepts]: Start accepts. Automaton has 6426 states and 7749 transitions. Word has length 92 [2023-12-16 08:11:10,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:10,773 INFO L495 AbstractCegarLoop]: Abstraction has 6426 states and 7749 transitions. [2023-12-16 08:11:10,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:10,773 INFO L276 IsEmpty]: Start isEmpty. Operand 6426 states and 7749 transitions. [2023-12-16 08:11:10,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:11:10,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:10,774 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] [2023-12-16 08:11:10,777 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2023-12-16 08:11:10,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:11:10,975 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:10,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:10,975 INFO L85 PathProgramCache]: Analyzing trace with hash -164765286, now seen corresponding path program 1 times [2023-12-16 08:11:10,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:10,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [5062939] [2023-12-16 08:11:10,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:10,976 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 08:11:10,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:10,977 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:11:10,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-16 08:11:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:11,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:11:11,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:11,151 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 08:11:11,151 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:11,151 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:11,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [5062939] [2023-12-16 08:11:11,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [5062939] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:11,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:11,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:11,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792746858] [2023-12-16 08:11:11,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:11,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:11:11,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:11,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:11:11,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:11:11,152 INFO L87 Difference]: Start difference. First operand 6426 states and 7749 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:12,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:12,027 INFO L93 Difference]: Finished difference Result 7922 states and 9658 transitions. [2023-12-16 08:11:12,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:11:12,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-16 08:11:12,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:12,038 INFO L225 Difference]: With dead ends: 7922 [2023-12-16 08:11:12,038 INFO L226 Difference]: Without dead ends: 6426 [2023-12-16 08:11:12,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 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 08:11:12,041 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 449 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:12,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 558 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:11:12,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6426 states. [2023-12-16 08:11:12,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6426 to 6426. [2023-12-16 08:11:12,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6426 states, 5035 states have (on average 1.2303872889771599) internal successors, (6195), 5182 states have internal predecessors, (6195), 648 states have call successors, (648), 538 states have call predecessors, (648), 741 states have return successors, (892), 708 states have call predecessors, (892), 645 states have call successors, (892) [2023-12-16 08:11:12,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6426 states to 6426 states and 7735 transitions. [2023-12-16 08:11:12,641 INFO L78 Accepts]: Start accepts. Automaton has 6426 states and 7735 transitions. Word has length 92 [2023-12-16 08:11:12,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:12,642 INFO L495 AbstractCegarLoop]: Abstraction has 6426 states and 7735 transitions. [2023-12-16 08:11:12,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:12,642 INFO L276 IsEmpty]: Start isEmpty. Operand 6426 states and 7735 transitions. [2023-12-16 08:11:12,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:11:12,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:12,643 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] [2023-12-16 08:11:12,646 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2023-12-16 08:11:12,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:11:12,844 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:12,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:12,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1221438108, now seen corresponding path program 1 times [2023-12-16 08:11:12,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:12,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670598982] [2023-12-16 08:11:12,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:12,845 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 08:11:12,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:12,846 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:11:12,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-16 08:11:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:12,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:11:12,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:13,034 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 08:11:13,034 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:13,034 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:13,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1670598982] [2023-12-16 08:11:13,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1670598982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:13,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:13,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:13,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557982796] [2023-12-16 08:11:13,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:13,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:11:13,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:13,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:11:13,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:11:13,036 INFO L87 Difference]: Start difference. First operand 6426 states and 7735 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:14,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:14,118 INFO L93 Difference]: Finished difference Result 8084 states and 9835 transitions. [2023-12-16 08:11:14,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:11:14,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2023-12-16 08:11:14,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:14,131 INFO L225 Difference]: With dead ends: 8084 [2023-12-16 08:11:14,131 INFO L226 Difference]: Without dead ends: 6588 [2023-12-16 08:11:14,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 08:11:14,134 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 497 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:14,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 553 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:11:14,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6588 states. [2023-12-16 08:11:14,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6588 to 6556. [2023-12-16 08:11:14,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6556 states, 5161 states have (on average 1.2232125557062585) internal successors, (6313), 5308 states have internal predecessors, (6313), 648 states have call successors, (648), 542 states have call predecessors, (648), 745 states have return successors, (892), 708 states have call predecessors, (892), 645 states have call successors, (892) [2023-12-16 08:11:14,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6556 states to 6556 states and 7853 transitions. [2023-12-16 08:11:14,763 INFO L78 Accepts]: Start accepts. Automaton has 6556 states and 7853 transitions. Word has length 92 [2023-12-16 08:11:14,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:14,763 INFO L495 AbstractCegarLoop]: Abstraction has 6556 states and 7853 transitions. [2023-12-16 08:11:14,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:14,763 INFO L276 IsEmpty]: Start isEmpty. Operand 6556 states and 7853 transitions. [2023-12-16 08:11:14,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:11:14,765 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:14,765 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] [2023-12-16 08:11:14,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2023-12-16 08:11:14,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:11:14,965 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:14,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:14,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1644139934, now seen corresponding path program 1 times [2023-12-16 08:11:14,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:14,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909193896] [2023-12-16 08:11:14,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:14,966 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 08:11:14,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:14,967 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:11:14,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-16 08:11:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:15,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:11:15,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:15,130 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 08:11:15,131 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:15,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:15,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909193896] [2023-12-16 08:11:15,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [909193896] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:15,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:15,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:11:15,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560898297] [2023-12-16 08:11:15,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:15,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:11:15,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:15,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:11:15,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:11:15,133 INFO L87 Difference]: Start difference. First operand 6556 states and 7853 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 08:11:15,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:15,956 INFO L93 Difference]: Finished difference Result 9735 states and 11795 transitions. [2023-12-16 08:11:15,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:11:15,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 92 [2023-12-16 08:11:15,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:15,971 INFO L225 Difference]: With dead ends: 9735 [2023-12-16 08:11:15,971 INFO L226 Difference]: Without dead ends: 8110 [2023-12-16 08:11:15,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 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 08:11:15,975 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 278 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:15,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 575 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:15,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8110 states. [2023-12-16 08:11:16,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8110 to 8106. [2023-12-16 08:11:16,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8106 states, 6571 states have (on average 1.2206665652107747) internal successors, (8021), 6724 states have internal predecessors, (8021), 722 states have call successors, (722), 606 states have call predecessors, (722), 811 states have return successors, (968), 778 states have call predecessors, (968), 719 states have call successors, (968) [2023-12-16 08:11:16,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8106 states to 8106 states and 9711 transitions. [2023-12-16 08:11:16,703 INFO L78 Accepts]: Start accepts. Automaton has 8106 states and 9711 transitions. Word has length 92 [2023-12-16 08:11:16,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:16,703 INFO L495 AbstractCegarLoop]: Abstraction has 8106 states and 9711 transitions. [2023-12-16 08:11:16,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 08:11:16,704 INFO L276 IsEmpty]: Start isEmpty. Operand 8106 states and 9711 transitions. [2023-12-16 08:11:16,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 08:11:16,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:16,709 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 08:11:16,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2023-12-16 08:11:16,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:11:16,912 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:16,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:16,913 INFO L85 PathProgramCache]: Analyzing trace with hash -160534672, now seen corresponding path program 1 times [2023-12-16 08:11:16,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:16,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154043314] [2023-12-16 08:11:16,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:16,913 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 08:11:16,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:16,914 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:11:16,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-16 08:11:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:16,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:17,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:17,026 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 08:11:17,026 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:17,027 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:17,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [154043314] [2023-12-16 08:11:17,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [154043314] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:17,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:17,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:17,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037262807] [2023-12-16 08:11:17,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:17,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:11:17,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:17,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:11:17,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:11:17,030 INFO L87 Difference]: Start difference. First operand 8106 states and 9711 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 08:11:18,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:18,498 INFO L93 Difference]: Finished difference Result 15357 states and 18397 transitions. [2023-12-16 08:11:18,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:11:18,498 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 08:11:18,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:18,511 INFO L225 Difference]: With dead ends: 15357 [2023-12-16 08:11:18,511 INFO L226 Difference]: Without dead ends: 10249 [2023-12-16 08:11:18,520 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 08:11:18,520 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 526 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:18,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 573 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:11:18,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10249 states. [2023-12-16 08:11:19,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10249 to 9929. [2023-12-16 08:11:19,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9929 states, 7905 states have (on average 1.2202403542061986) internal successors, (9646), 8094 states have internal predecessors, (9646), 942 states have call successors, (942), 795 states have call predecessors, (942), 1080 states have return successors, (1262), 1041 states have call predecessors, (1262), 939 states have call successors, (1262) [2023-12-16 08:11:19,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9929 states to 9929 states and 11850 transitions. [2023-12-16 08:11:19,492 INFO L78 Accepts]: Start accepts. Automaton has 9929 states and 11850 transitions. Word has length 145 [2023-12-16 08:11:19,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:19,493 INFO L495 AbstractCegarLoop]: Abstraction has 9929 states and 11850 transitions. [2023-12-16 08:11:19,493 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 08:11:19,493 INFO L276 IsEmpty]: Start isEmpty. Operand 9929 states and 11850 transitions. [2023-12-16 08:11:19,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 08:11:19,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:19,495 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:11:19,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2023-12-16 08:11:19,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:11:19,696 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:19,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:19,697 INFO L85 PathProgramCache]: Analyzing trace with hash -317623883, now seen corresponding path program 1 times [2023-12-16 08:11:19,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:19,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796345932] [2023-12-16 08:11:19,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:19,697 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 08:11:19,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:19,698 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:11:19,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-16 08:11:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:19,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:11:19,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:19,925 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 08:11:19,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:19,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:19,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796345932] [2023-12-16 08:11:19,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1796345932] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:19,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:19,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:11:19,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31576322] [2023-12-16 08:11:19,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:19,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:11:19,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:19,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:11:19,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:11:19,928 INFO L87 Difference]: Start difference. First operand 9929 states and 11850 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 08:11:21,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:21,216 INFO L93 Difference]: Finished difference Result 15850 states and 19131 transitions. [2023-12-16 08:11:21,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:11:21,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 148 [2023-12-16 08:11:21,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:21,238 INFO L225 Difference]: With dead ends: 15850 [2023-12-16 08:11:21,239 INFO L226 Difference]: Without dead ends: 12675 [2023-12-16 08:11:21,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 146 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 08:11:21,245 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 284 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:21,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 577 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:21,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12675 states. [2023-12-16 08:11:22,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12675 to 12663. [2023-12-16 08:11:22,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12663 states, 10391 states have (on average 1.2177846213069001) internal successors, (12654), 10588 states have internal predecessors, (12654), 1074 states have call successors, (1074), 907 states have call predecessors, (1074), 1196 states have return successors, (1398), 1169 states have call predecessors, (1398), 1071 states have call successors, (1398) [2023-12-16 08:11:22,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12663 states to 12663 states and 15126 transitions. [2023-12-16 08:11:22,399 INFO L78 Accepts]: Start accepts. Automaton has 12663 states and 15126 transitions. Word has length 148 [2023-12-16 08:11:22,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:22,399 INFO L495 AbstractCegarLoop]: Abstraction has 12663 states and 15126 transitions. [2023-12-16 08:11:22,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 08:11:22,399 INFO L276 IsEmpty]: Start isEmpty. Operand 12663 states and 15126 transitions. [2023-12-16 08:11:22,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 08:11:22,404 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:22,405 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:11:22,414 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 (38)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:22,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:11:22,611 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:22,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:22,612 INFO L85 PathProgramCache]: Analyzing trace with hash -479303052, now seen corresponding path program 1 times [2023-12-16 08:11:22,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:22,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51301556] [2023-12-16 08:11:22,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:22,613 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 08:11:22,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:22,614 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:11:22,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-16 08:11:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:22,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 08:11:22,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:22,869 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 08:11:22,869 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:22,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:22,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51301556] [2023-12-16 08:11:22,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51301556] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:22,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:22,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:22,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048997045] [2023-12-16 08:11:22,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:22,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:11:22,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:22,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:11:22,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:22,871 INFO L87 Difference]: Start difference. First operand 12663 states and 15126 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 08:11:24,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:24,572 INFO L93 Difference]: Finished difference Result 24227 states and 29114 transitions. [2023-12-16 08:11:24,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:11:24,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 148 [2023-12-16 08:11:24,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:24,658 INFO L225 Difference]: With dead ends: 24227 [2023-12-16 08:11:24,658 INFO L226 Difference]: Without dead ends: 18319 [2023-12-16 08:11:24,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:11:24,666 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 470 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:24,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 786 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:11:24,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18319 states. [2023-12-16 08:11:26,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18319 to 18315. [2023-12-16 08:11:26,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18315 states, 15528 states have (on average 1.2121329211746523) internal successors, (18822), 15750 states have internal predecessors, (18822), 1341 states have call successors, (1341), 1131 states have call predecessors, (1341), 1444 states have return successors, (1737), 1436 states have call predecessors, (1737), 1338 states have call successors, (1737) [2023-12-16 08:11:26,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18315 states to 18315 states and 21900 transitions. [2023-12-16 08:11:26,251 INFO L78 Accepts]: Start accepts. Automaton has 18315 states and 21900 transitions. Word has length 148 [2023-12-16 08:11:26,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:26,251 INFO L495 AbstractCegarLoop]: Abstraction has 18315 states and 21900 transitions. [2023-12-16 08:11:26,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 08:11:26,251 INFO L276 IsEmpty]: Start isEmpty. Operand 18315 states and 21900 transitions. [2023-12-16 08:11:26,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 08:11:26,257 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:26,257 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:11:26,265 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 (39)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:26,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:11:26,458 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:26,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:26,459 INFO L85 PathProgramCache]: Analyzing trace with hash -635283594, now seen corresponding path program 1 times [2023-12-16 08:11:26,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:26,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413802275] [2023-12-16 08:11:26,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:26,459 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 08:11:26,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:26,460 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:11:26,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-12-16 08:11:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:26,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:11:26,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:26,576 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 08:11:26,576 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:26,576 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:26,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413802275] [2023-12-16 08:11:26,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413802275] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:26,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:26,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:11:26,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844947835] [2023-12-16 08:11:26,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:26,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:11:26,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:26,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:11:26,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:11:26,578 INFO L87 Difference]: Start difference. First operand 18315 states and 21900 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:11:27,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:27,831 INFO L93 Difference]: Finished difference Result 27157 states and 32523 transitions. [2023-12-16 08:11:27,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:11:27,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 148 [2023-12-16 08:11:27,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:27,859 INFO L225 Difference]: With dead ends: 27157 [2023-12-16 08:11:27,859 INFO L226 Difference]: Without dead ends: 15597 [2023-12-16 08:11:27,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 146 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 08:11:27,872 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 262 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:27,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 467 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:11:27,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15597 states. Received shutdown request... [2023-12-16 08:11:29,118 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 08:11:29,118 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 (40)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:11:29,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15597 to 15597. [2023-12-16 08:11:29,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15597 states, 13061 states have (on average 1.2125411530510681) internal successors, (15837), 13274 states have internal predecessors, (15837), 1206 states have call successors, (1206), 1019 states have call predecessors, (1206), 1328 states have return successors, (1574), 1305 states have call predecessors, (1574), 1203 states have call successors, (1574) [2023-12-16 08:11:29,410 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 08:11:29,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2023-12-16 08:11:29,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:11:29,612 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 08:11:29,614 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 08:11:29,616 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:11:29,618 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:11:29,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:11:29 BoogieIcfgContainer [2023-12-16 08:11:29,620 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:11:29,624 INFO L158 Benchmark]: Toolchain (without parser) took 62615.86ms. Allocated memory was 208.7MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 163.6MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-16 08:11:29,624 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 208.7MB. Free memory is still 166.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:11:29,624 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.52ms. Allocated memory is still 208.7MB. Free memory was 163.6MB in the beginning and 141.6MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-12-16 08:11:29,624 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.06ms. Allocated memory is still 208.7MB. Free memory was 141.3MB in the beginning and 138.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 08:11:29,624 INFO L158 Benchmark]: Boogie Preprocessor took 84.80ms. Allocated memory is still 208.7MB. Free memory was 138.1MB in the beginning and 133.3MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 08:11:29,625 INFO L158 Benchmark]: RCFGBuilder took 934.74ms. Allocated memory is still 208.7MB. Free memory was 133.3MB in the beginning and 139.4MB in the end (delta: -6.1MB). Peak memory consumption was 16.4MB. Max. memory is 8.0GB. [2023-12-16 08:11:29,625 INFO L158 Benchmark]: TraceAbstraction took 61043.14ms. Allocated memory was 208.7MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 138.3MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-16 08:11:29,625 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 208.7MB. Free memory is still 166.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 491.52ms. Allocated memory is still 208.7MB. Free memory was 163.6MB in the beginning and 141.6MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.06ms. Allocated memory is still 208.7MB. Free memory was 141.3MB in the beginning and 138.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 84.80ms. Allocated memory is still 208.7MB. Free memory was 138.1MB in the beginning and 133.3MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 934.74ms. Allocated memory is still 208.7MB. Free memory was 133.3MB in the beginning and 139.4MB in the end (delta: -6.1MB). Peak memory consumption was 16.4MB. Max. memory is 8.0GB. * TraceAbstraction took 61043.14ms. Allocated memory was 208.7MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 138.3MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 1.6GB. 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 ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 28]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 28). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 16 procedures, 286 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 61.0s, OverallIterations: 39, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 27.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14234 SdHoareTripleChecker+Valid, 8.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13856 mSDsluCounter, 30539 SdHoareTripleChecker+Invalid, 7.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17845 mSDsCounter, 1123 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10721 IncrementalHoareTripleChecker+Invalid, 11844 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1123 mSolverCounterUnsat, 12694 mSDtfsCounter, 10721 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3471 GetRequests, 3359 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18315occurred in iteration=38, InterpolantAutomatonStates: 170, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 19.5s AutomataMinimizationTime, 39 MinimizatonAttempts, 3131 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 3415 NumberOfCodeBlocks, 3415 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 3443 ConstructedInterpolants, 0 QuantifiedInterpolants, 6111 SizeOfPredicates, 11 NumberOfNonLiveVariables, 9050 ConjunctsInSsa, 148 ConjunctsInUnsatCore, 40 InterpolantComputations, 38 PerfectInterpolantSequences, 270/274 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