/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/product-lines/elevator_spec14_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:21:08,998 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:21:09,039 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 05:21:09,048 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:21:09,048 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:21:09,075 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:21:09,076 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:21:09,076 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:21:09,076 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:21:09,077 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:21:09,077 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:21:09,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:21:09,077 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:21:09,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:21:09,078 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:21:09,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:21:09,078 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:21:09,079 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:21:09,079 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:21:09,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:21:09,079 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:21:09,082 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:21:09,082 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:21:09,082 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:21:09,083 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:21:09,083 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:21:09,083 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:21:09,083 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:21:09,084 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:21:09,084 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:21:09,084 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:21:09,084 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:21:09,084 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:21:09,085 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:21:09,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:21:09,085 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:21:09,085 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:21:09,086 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:21:09,086 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:21:09,086 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:21:09,086 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:21:09,086 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:21:09,087 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:21:09,087 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:21:09,087 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:21:09,087 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:21:09,087 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:21:09,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:21:09,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:21:09,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:21:09,264 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:21:09,265 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:21:09,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product03.cil.c [2023-12-25 05:21:10,399 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:21:10,643 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:21:10,644 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product03.cil.c [2023-12-25 05:21:10,664 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1c6ed8f8/bd1d42d45a5a4f489119ef5af70791d9/FLAG334c7bd2f [2023-12-25 05:21:10,675 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1c6ed8f8/bd1d42d45a5a4f489119ef5af70791d9 [2023-12-25 05:21:10,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:21:10,678 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:21:10,679 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:21:10,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:21:10,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:21:10,686 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:21:10" (1/1) ... [2023-12-25 05:21:10,687 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c3bcf22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:21:10, skipping insertion in model container [2023-12-25 05:21:10,687 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:21:10" (1/1) ... [2023-12-25 05:21:10,746 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:21:11,168 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product03.cil.c[68958,68971] [2023-12-25 05:21:11,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:21:11,188 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:21:11,201 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:21:11,303 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product03.cil.c[68958,68971] [2023-12-25 05:21:11,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:21:11,311 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:21:11,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2023-12-25 05:21:11,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [169] [2023-12-25 05:21:11,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [268] [2023-12-25 05:21:11,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [935] [2023-12-25 05:21:11,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [976] [2023-12-25 05:21:11,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [994] [2023-12-25 05:21:11,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1346] [2023-12-25 05:21:11,319 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1712] [2023-12-25 05:21:11,319 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1747] [2023-12-25 05:21:11,319 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3244] [2023-12-25 05:21:11,381 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product03.cil.c[68958,68971] [2023-12-25 05:21:11,382 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:21:11,417 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:21:11,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:21:11 WrapperNode [2023-12-25 05:21:11,417 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:21:11,418 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:21:11,418 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:21:11,418 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:21:11,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:21:11" (1/1) ... [2023-12-25 05:21:11,444 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:21:11" (1/1) ... [2023-12-25 05:21:11,475 INFO L138 Inliner]: procedures = 91, calls = 329, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 946 [2023-12-25 05:21:11,475 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:21:11,476 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:21:11,476 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:21:11,476 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:21:11,484 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:21:11" (1/1) ... [2023-12-25 05:21:11,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:21:11" (1/1) ... [2023-12-25 05:21:11,499 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:21:11" (1/1) ... [2023-12-25 05:21:11,518 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-25 05:21:11,519 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:21:11" (1/1) ... [2023-12-25 05:21:11,519 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:21:11" (1/1) ... [2023-12-25 05:21:11,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:21:11" (1/1) ... [2023-12-25 05:21:11,554 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:21:11" (1/1) ... [2023-12-25 05:21:11,558 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:21:11" (1/1) ... [2023-12-25 05:21:11,561 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:21:11" (1/1) ... [2023-12-25 05:21:11,580 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:21:11,581 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:21:11,581 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:21:11,581 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:21:11,582 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:21:11" (1/1) ... [2023-12-25 05:21:11,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:21:11,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:21:11,613 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) [2023-12-25 05:21:11,657 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 [2023-12-25 05:21:11,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:21:11,682 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-25 05:21:11,682 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-25 05:21:11,682 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:21:11,682 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:21:11,682 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-25 05:21:11,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-25 05:21:11,683 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:21:11,683 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:21:11,683 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-25 05:21:11,683 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-25 05:21:11,683 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:21:11,683 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:21:11,683 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:21:11,683 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:21:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:21:11,684 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:21:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:21:11,684 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:21:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:21:11,684 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:21:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:21:11,684 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:21:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:21:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:21:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:21:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:21:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:21:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:21:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:21:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:21:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:21:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:21:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:21:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:21:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:21:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:21:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:21:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:21:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:21:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:21:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:21:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:21:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-25 05:21:11,685 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-25 05:21:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:21:11,686 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:21:11,686 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:21:11,686 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:21:11,686 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:21:11,686 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:21:11,686 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:21:11,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:21:11,686 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:21:11,686 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:21:11,686 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2023-12-25 05:21:11,686 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2023-12-25 05:21:11,686 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:21:11,686 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:21:11,686 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:21:11,686 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:21:11,686 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:21:11,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:21:11,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:21:11,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:21:11,687 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:21:11,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:21:11,880 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:21:11,882 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:21:12,726 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:21:12,818 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:21:12,818 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:21:12,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:21:12 BoogieIcfgContainer [2023-12-25 05:21:12,819 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:21:12,820 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:21:12,820 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:21:12,822 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:21:12,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:21:10" (1/3) ... [2023-12-25 05:21:12,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d4ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:21:12, skipping insertion in model container [2023-12-25 05:21:12,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:21:11" (2/3) ... [2023-12-25 05:21:12,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d4ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:21:12, skipping insertion in model container [2023-12-25 05:21:12,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:21:12" (3/3) ... [2023-12-25 05:21:12,825 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product03.cil.c [2023-12-25 05:21:12,836 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:21:12,837 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:21:12,873 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:21:12,877 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;@716e506b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:21:12,877 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:21:12,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 497 states, 382 states have (on average 1.7172774869109948) internal successors, (656), 398 states have internal predecessors, (656), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-25 05:21:12,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-25 05:21:12,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:12,909 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 05:21:12,910 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:12,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:12,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1717607305, now seen corresponding path program 1 times [2023-12-25 05:21:12,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:12,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128303046] [2023-12-25 05:21:12,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:12,926 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 [2023-12-25 05:21:12,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:12,936 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) [2023-12-25 05:21:12,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 05:21:13,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:13,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:21:13,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:13,255 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:21:13,256 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:13,256 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:13,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2128303046] [2023-12-25 05:21:13,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2128303046] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:13,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:13,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:21:13,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145736521] [2023-12-25 05:21:13,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:13,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:21:13,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:13,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:21:13,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:21:13,282 INFO L87 Difference]: Start difference. First operand has 497 states, 382 states have (on average 1.7172774869109948) internal successors, (656), 398 states have internal predecessors, (656), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:13,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:13,468 INFO L93 Difference]: Finished difference Result 993 states and 1682 transitions. [2023-12-25 05:21:13,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:21:13,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 88 [2023-12-25 05:21:13,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:13,486 INFO L225 Difference]: With dead ends: 993 [2023-12-25 05:21:13,486 INFO L226 Difference]: Without dead ends: 496 [2023-12-25 05:21:13,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:21:13,497 INFO L413 NwaCegarLoop]: 806 mSDtfsCounter, 15 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:13,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2411 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:21:13,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2023-12-25 05:21:13,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2023-12-25 05:21:13,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 382 states have (on average 1.698952879581152) internal successors, (649), 397 states have internal predecessors, (649), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-25 05:21:13,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 830 transitions. [2023-12-25 05:21:13,582 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 830 transitions. Word has length 88 [2023-12-25 05:21:13,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:13,583 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 830 transitions. [2023-12-25 05:21:13,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:13,584 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 830 transitions. [2023-12-25 05:21:13,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-25 05:21:13,595 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:13,596 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 05:21:13,604 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 (2)] Ended with exit code 0 [2023-12-25 05:21:13,802 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 [2023-12-25 05:21:13,803 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:13,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:13,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1831948279, now seen corresponding path program 1 times [2023-12-25 05:21:13,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:13,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1998122527] [2023-12-25 05:21:13,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:13,807 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 [2023-12-25 05:21:13,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:13,808 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) [2023-12-25 05:21:13,850 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 [2023-12-25 05:21:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:14,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:21:14,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:14,113 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:21:14,113 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:14,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:14,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1998122527] [2023-12-25 05:21:14,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1998122527] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:14,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:14,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:21:14,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611224437] [2023-12-25 05:21:14,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:14,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:21:14,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:14,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:21:14,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:21:14,116 INFO L87 Difference]: Start difference. First operand 496 states and 830 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:14,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:14,244 INFO L93 Difference]: Finished difference Result 980 states and 1642 transitions. [2023-12-25 05:21:14,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:21:14,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 89 [2023-12-25 05:21:14,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:14,247 INFO L225 Difference]: With dead ends: 980 [2023-12-25 05:21:14,247 INFO L226 Difference]: Without dead ends: 496 [2023-12-25 05:21:14,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:21:14,250 INFO L413 NwaCegarLoop]: 801 mSDtfsCounter, 12 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:14,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2394 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:21:14,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2023-12-25 05:21:14,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2023-12-25 05:21:14,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 382 states have (on average 1.6963350785340314) internal successors, (648), 397 states have internal predecessors, (648), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-25 05:21:14,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 829 transitions. [2023-12-25 05:21:14,269 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 829 transitions. Word has length 89 [2023-12-25 05:21:14,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:14,269 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 829 transitions. [2023-12-25 05:21:14,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:14,270 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 829 transitions. [2023-12-25 05:21:14,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-25 05:21:14,273 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:14,273 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 05:21:14,281 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 [2023-12-25 05:21:14,478 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 [2023-12-25 05:21:14,479 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:14,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:14,480 INFO L85 PathProgramCache]: Analyzing trace with hash 2051964723, now seen corresponding path program 1 times [2023-12-25 05:21:14,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:14,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318213570] [2023-12-25 05:21:14,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:14,481 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 [2023-12-25 05:21:14,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:14,483 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) [2023-12-25 05:21:14,485 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 [2023-12-25 05:21:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:14,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:21:14,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:14,742 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:21:14,742 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:14,742 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:14,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318213570] [2023-12-25 05:21:14,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318213570] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:14,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:14,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:21:14,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229611198] [2023-12-25 05:21:14,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:14,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:21:14,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:14,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:21:14,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:21:14,744 INFO L87 Difference]: Start difference. First operand 496 states and 829 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:14,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:14,819 INFO L93 Difference]: Finished difference Result 980 states and 1641 transitions. [2023-12-25 05:21:14,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:21:14,820 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 90 [2023-12-25 05:21:14,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:14,822 INFO L225 Difference]: With dead ends: 980 [2023-12-25 05:21:14,822 INFO L226 Difference]: Without dead ends: 496 [2023-12-25 05:21:14,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:21:14,824 INFO L413 NwaCegarLoop]: 801 mSDtfsCounter, 10 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:14,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2394 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:21:14,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2023-12-25 05:21:14,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2023-12-25 05:21:14,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 382 states have (on average 1.693717277486911) internal successors, (647), 397 states have internal predecessors, (647), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-25 05:21:14,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 828 transitions. [2023-12-25 05:21:14,837 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 828 transitions. Word has length 90 [2023-12-25 05:21:14,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:14,838 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 828 transitions. [2023-12-25 05:21:14,838 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:14,838 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 828 transitions. [2023-12-25 05:21:14,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-25 05:21:14,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:14,840 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 05:21:14,848 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 (4)] Forceful destruction successful, exit code 0 [2023-12-25 05:21:15,046 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 [2023-12-25 05:21:15,046 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:15,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:15,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1032732101, now seen corresponding path program 1 times [2023-12-25 05:21:15,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:15,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099701512] [2023-12-25 05:21:15,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:15,047 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 [2023-12-25 05:21:15,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:15,048 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) [2023-12-25 05:21:15,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 05:21:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:15,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:21:15,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:15,290 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:21:15,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:15,291 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:15,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099701512] [2023-12-25 05:21:15,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099701512] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:15,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:15,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:21:15,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785628816] [2023-12-25 05:21:15,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:15,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:21:15,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:15,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:21:15,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:21:15,293 INFO L87 Difference]: Start difference. First operand 496 states and 828 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:15,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:15,364 INFO L93 Difference]: Finished difference Result 980 states and 1640 transitions. [2023-12-25 05:21:15,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:21:15,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 91 [2023-12-25 05:21:15,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:15,367 INFO L225 Difference]: With dead ends: 980 [2023-12-25 05:21:15,367 INFO L226 Difference]: Without dead ends: 496 [2023-12-25 05:21:15,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:21:15,369 INFO L413 NwaCegarLoop]: 801 mSDtfsCounter, 8 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:15,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2394 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:21:15,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2023-12-25 05:21:15,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2023-12-25 05:21:15,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 382 states have (on average 1.6910994764397906) internal successors, (646), 397 states have internal predecessors, (646), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-25 05:21:15,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 827 transitions. [2023-12-25 05:21:15,382 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 827 transitions. Word has length 91 [2023-12-25 05:21:15,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:15,382 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 827 transitions. [2023-12-25 05:21:15,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:15,382 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 827 transitions. [2023-12-25 05:21:15,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-25 05:21:15,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:15,384 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 05:21:15,392 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 [2023-12-25 05:21:15,590 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 [2023-12-25 05:21:15,590 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:15,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:15,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1660159505, now seen corresponding path program 1 times [2023-12-25 05:21:15,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:15,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738269126] [2023-12-25 05:21:15,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:15,591 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 [2023-12-25 05:21:15,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:15,594 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) [2023-12-25 05:21:15,599 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 [2023-12-25 05:21:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:15,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:21:15,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:15,856 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:21:15,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:15,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:15,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738269126] [2023-12-25 05:21:15,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738269126] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:15,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:15,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:21:15,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651085121] [2023-12-25 05:21:15,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:15,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:21:15,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:15,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:21:15,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:21:15,858 INFO L87 Difference]: Start difference. First operand 496 states and 827 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:15,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:15,929 INFO L93 Difference]: Finished difference Result 980 states and 1639 transitions. [2023-12-25 05:21:15,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:21:15,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 92 [2023-12-25 05:21:15,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:15,932 INFO L225 Difference]: With dead ends: 980 [2023-12-25 05:21:15,932 INFO L226 Difference]: Without dead ends: 496 [2023-12-25 05:21:15,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:21:15,935 INFO L413 NwaCegarLoop]: 801 mSDtfsCounter, 6 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:15,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2394 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:21:15,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2023-12-25 05:21:15,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2023-12-25 05:21:15,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 382 states have (on average 1.6884816753926701) internal successors, (645), 397 states have internal predecessors, (645), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-25 05:21:15,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 826 transitions. [2023-12-25 05:21:15,954 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 826 transitions. Word has length 92 [2023-12-25 05:21:15,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:15,954 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 826 transitions. [2023-12-25 05:21:15,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:15,955 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 826 transitions. [2023-12-25 05:21:15,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-25 05:21:15,956 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:15,956 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 05:21:15,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-25 05:21:16,162 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 [2023-12-25 05:21:16,162 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:16,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:16,163 INFO L85 PathProgramCache]: Analyzing trace with hash -401904767, now seen corresponding path program 1 times [2023-12-25 05:21:16,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:16,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916303778] [2023-12-25 05:21:16,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:16,164 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 [2023-12-25 05:21:16,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:16,185 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) [2023-12-25 05:21:16,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 05:21:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:16,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:21:16,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:16,472 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:21:16,472 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:16,473 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:16,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916303778] [2023-12-25 05:21:16,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [916303778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:16,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:16,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:21:16,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685331096] [2023-12-25 05:21:16,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:16,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:21:16,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:16,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:21:16,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:21:16,474 INFO L87 Difference]: Start difference. First operand 496 states and 826 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:21:16,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:16,679 INFO L93 Difference]: Finished difference Result 990 states and 1655 transitions. [2023-12-25 05:21:16,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:21:16,680 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 93 [2023-12-25 05:21:16,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:16,683 INFO L225 Difference]: With dead ends: 990 [2023-12-25 05:21:16,683 INFO L226 Difference]: Without dead ends: 510 [2023-12-25 05:21:16,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:21:16,686 INFO L413 NwaCegarLoop]: 799 mSDtfsCounter, 115 mSDsluCounter, 3901 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 4700 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:16,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 4700 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:21:16,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-12-25 05:21:16,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 508. [2023-12-25 05:21:16,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 391 states have (on average 1.6854219948849105) internal successors, (659), 408 states have internal predecessors, (659), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (94), 89 states have call predecessors, (94), 91 states have call successors, (94) [2023-12-25 05:21:16,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 845 transitions. [2023-12-25 05:21:16,702 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 845 transitions. Word has length 93 [2023-12-25 05:21:16,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:16,702 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 845 transitions. [2023-12-25 05:21:16,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:21:16,702 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 845 transitions. [2023-12-25 05:21:16,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-25 05:21:16,704 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:16,704 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 05:21:16,709 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 (7)] Ended with exit code 0 [2023-12-25 05:21:16,909 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 [2023-12-25 05:21:16,910 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:16,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:16,910 INFO L85 PathProgramCache]: Analyzing trace with hash 381474208, now seen corresponding path program 1 times [2023-12-25 05:21:16,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:16,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863827207] [2023-12-25 05:21:16,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:16,911 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 [2023-12-25 05:21:16,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:16,912 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) [2023-12-25 05:21:16,913 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 [2023-12-25 05:21:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:17,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:21:17,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:17,146 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:21:17,147 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:17,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:17,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863827207] [2023-12-25 05:21:17,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863827207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:17,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:17,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:21:17,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410207471] [2023-12-25 05:21:17,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:17,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:21:17,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:17,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:21:17,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:21:17,148 INFO L87 Difference]: Start difference. First operand 508 states and 845 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:17,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:17,229 INFO L93 Difference]: Finished difference Result 996 states and 1665 transitions. [2023-12-25 05:21:17,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:21:17,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 93 [2023-12-25 05:21:17,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:17,233 INFO L225 Difference]: With dead ends: 996 [2023-12-25 05:21:17,233 INFO L226 Difference]: Without dead ends: 504 [2023-12-25 05:21:17,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:21:17,236 INFO L413 NwaCegarLoop]: 800 mSDtfsCounter, 6 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2393 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:17,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2393 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:21:17,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2023-12-25 05:21:17,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2023-12-25 05:21:17,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 389 states have (on average 1.686375321336761) internal successors, (656), 405 states have internal predecessors, (656), 91 states have call successors, (91), 23 states have call predecessors, (91), 23 states have return successors, (91), 88 states have call predecessors, (91), 90 states have call successors, (91) [2023-12-25 05:21:17,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 838 transitions. [2023-12-25 05:21:17,249 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 838 transitions. Word has length 93 [2023-12-25 05:21:17,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:17,249 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 838 transitions. [2023-12-25 05:21:17,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:17,249 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 838 transitions. [2023-12-25 05:21:17,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-25 05:21:17,251 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:17,251 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:17,265 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 (8)] Forceful destruction successful, exit code 0 [2023-12-25 05:21:17,462 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 [2023-12-25 05:21:17,463 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:17,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:17,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1577251849, now seen corresponding path program 1 times [2023-12-25 05:21:17,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:17,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1122250072] [2023-12-25 05:21:17,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:17,465 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 [2023-12-25 05:21:17,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:17,466 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) [2023-12-25 05:21:17,487 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 [2023-12-25 05:21:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:17,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:21:17,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:17,702 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:21:17,702 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:17,703 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:17,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1122250072] [2023-12-25 05:21:17,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1122250072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:17,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:17,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:21:17,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492533113] [2023-12-25 05:21:17,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:17,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:21:17,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:17,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:21:17,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:21:17,704 INFO L87 Difference]: Start difference. First operand 504 states and 838 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:17,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:17,867 INFO L93 Difference]: Finished difference Result 1019 states and 1707 transitions. [2023-12-25 05:21:17,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:21:17,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2023-12-25 05:21:17,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:17,869 INFO L225 Difference]: With dead ends: 1019 [2023-12-25 05:21:17,869 INFO L226 Difference]: Without dead ends: 517 [2023-12-25 05:21:17,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:21:17,872 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 112 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 2224 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:17,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 2224 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:21:17,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-12-25 05:21:17,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 509. [2023-12-25 05:21:17,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 394 states have (on average 1.6725888324873097) internal successors, (659), 409 states have internal predecessors, (659), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-25 05:21:17,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 840 transitions. [2023-12-25 05:21:17,900 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 840 transitions. Word has length 94 [2023-12-25 05:21:17,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:17,901 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 840 transitions. [2023-12-25 05:21:17,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:17,901 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 840 transitions. [2023-12-25 05:21:17,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-25 05:21:17,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:17,903 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 05:21:17,915 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-25 05:21:18,103 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 [2023-12-25 05:21:18,104 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:18,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:18,104 INFO L85 PathProgramCache]: Analyzing trace with hash 221872868, now seen corresponding path program 1 times [2023-12-25 05:21:18,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:18,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032108885] [2023-12-25 05:21:18,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:18,105 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 [2023-12-25 05:21:18,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:18,106 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) [2023-12-25 05:21:18,107 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 [2023-12-25 05:21:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:18,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:21:18,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:18,323 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:21:18,323 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:18,323 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:18,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032108885] [2023-12-25 05:21:18,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1032108885] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:18,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:18,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:21:18,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667725940] [2023-12-25 05:21:18,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:18,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:21:18,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:18,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:21:18,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:21:18,325 INFO L87 Difference]: Start difference. First operand 509 states and 840 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:18,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:18,457 INFO L93 Difference]: Finished difference Result 972 states and 1605 transitions. [2023-12-25 05:21:18,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:21:18,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 95 [2023-12-25 05:21:18,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:18,460 INFO L225 Difference]: With dead ends: 972 [2023-12-25 05:21:18,460 INFO L226 Difference]: Without dead ends: 509 [2023-12-25 05:21:18,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:21:18,463 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 77 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 2225 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:18,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 2225 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:21:18,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2023-12-25 05:21:18,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2023-12-25 05:21:18,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 394 states have (on average 1.6624365482233503) internal successors, (655), 409 states have internal predecessors, (655), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-25 05:21:18,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 836 transitions. [2023-12-25 05:21:18,475 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 836 transitions. Word has length 95 [2023-12-25 05:21:18,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:18,476 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 836 transitions. [2023-12-25 05:21:18,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:18,476 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 836 transitions. [2023-12-25 05:21:18,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 05:21:18,478 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:18,478 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:18,498 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 [2023-12-25 05:21:18,683 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 [2023-12-25 05:21:18,684 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:18,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:18,684 INFO L85 PathProgramCache]: Analyzing trace with hash 200458076, now seen corresponding path program 1 times [2023-12-25 05:21:18,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:18,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265900463] [2023-12-25 05:21:18,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:18,685 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 [2023-12-25 05:21:18,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:18,686 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) [2023-12-25 05:21:18,697 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 [2023-12-25 05:21:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:18,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:21:18,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:18,925 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:21:18,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:18,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:18,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265900463] [2023-12-25 05:21:18,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265900463] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:18,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:18,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:21:18,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118899670] [2023-12-25 05:21:18,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:18,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:21:18,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:18,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:21:18,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:21:18,928 INFO L87 Difference]: Start difference. First operand 509 states and 836 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:19,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:19,059 INFO L93 Difference]: Finished difference Result 972 states and 1601 transitions. [2023-12-25 05:21:19,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:21:19,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2023-12-25 05:21:19,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:19,065 INFO L225 Difference]: With dead ends: 972 [2023-12-25 05:21:19,065 INFO L226 Difference]: Without dead ends: 509 [2023-12-25 05:21:19,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:21:19,067 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 72 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 2225 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:19,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 2225 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:21:19,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2023-12-25 05:21:19,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2023-12-25 05:21:19,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 394 states have (on average 1.6522842639593909) internal successors, (651), 409 states have internal predecessors, (651), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-25 05:21:19,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 832 transitions. [2023-12-25 05:21:19,078 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 832 transitions. Word has length 96 [2023-12-25 05:21:19,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:19,078 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 832 transitions. [2023-12-25 05:21:19,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:19,078 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 832 transitions. [2023-12-25 05:21:19,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 05:21:19,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:19,080 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:19,087 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 [2023-12-25 05:21:19,285 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 [2023-12-25 05:21:19,285 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:19,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:19,286 INFO L85 PathProgramCache]: Analyzing trace with hash -697492516, now seen corresponding path program 1 times [2023-12-25 05:21:19,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:19,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596128221] [2023-12-25 05:21:19,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:19,286 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:21:19,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:19,288 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) [2023-12-25 05:21:19,289 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 [2023-12-25 05:21:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:19,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:21:19,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:19,560 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:21:19,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:19,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:19,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [596128221] [2023-12-25 05:21:19,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [596128221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:19,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:19,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:21:19,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064666037] [2023-12-25 05:21:19,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:19,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:21:19,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:19,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:21:19,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:21:19,562 INFO L87 Difference]: Start difference. First operand 509 states and 832 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:21:19,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:19,704 INFO L93 Difference]: Finished difference Result 980 states and 1610 transitions. [2023-12-25 05:21:19,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:21:19,704 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 96 [2023-12-25 05:21:19,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:19,706 INFO L225 Difference]: With dead ends: 980 [2023-12-25 05:21:19,706 INFO L226 Difference]: Without dead ends: 496 [2023-12-25 05:21:19,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:21:19,709 INFO L413 NwaCegarLoop]: 787 mSDtfsCounter, 106 mSDsluCounter, 3821 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 4608 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:19,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 4608 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:21:19,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2023-12-25 05:21:19,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 488. [2023-12-25 05:21:19,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 373 states have (on average 1.646112600536193) internal successors, (614), 388 states have internal predecessors, (614), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-25 05:21:19,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 795 transitions. [2023-12-25 05:21:19,721 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 795 transitions. Word has length 96 [2023-12-25 05:21:19,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:19,721 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 795 transitions. [2023-12-25 05:21:19,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:21:19,721 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 795 transitions. [2023-12-25 05:21:19,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 05:21:19,722 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:19,723 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:19,741 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 [2023-12-25 05:21:19,942 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 [2023-12-25 05:21:19,942 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:19,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:19,943 INFO L85 PathProgramCache]: Analyzing trace with hash -423106647, now seen corresponding path program 1 times [2023-12-25 05:21:19,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:19,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418533203] [2023-12-25 05:21:19,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:19,943 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 [2023-12-25 05:21:19,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:19,953 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:21:19,956 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 [2023-12-25 05:21:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:20,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:21:20,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:20,198 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:21:20,198 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:20,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:20,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1418533203] [2023-12-25 05:21:20,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1418533203] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:20,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:20,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:21:20,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513699070] [2023-12-25 05:21:20,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:20,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:21:20,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:20,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:21:20,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:21:20,200 INFO L87 Difference]: Start difference. First operand 488 states and 795 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:20,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:20,303 INFO L93 Difference]: Finished difference Result 951 states and 1560 transitions. [2023-12-25 05:21:20,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:21:20,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2023-12-25 05:21:20,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:20,306 INFO L225 Difference]: With dead ends: 951 [2023-12-25 05:21:20,306 INFO L226 Difference]: Without dead ends: 488 [2023-12-25 05:21:20,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:21:20,309 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 40 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 2225 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:20,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 2225 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:21:20,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-12-25 05:21:20,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2023-12-25 05:21:20,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 373 states have (on average 1.64343163538874) internal successors, (613), 388 states have internal predecessors, (613), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-25 05:21:20,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 794 transitions. [2023-12-25 05:21:20,319 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 794 transitions. Word has length 97 [2023-12-25 05:21:20,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:20,319 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 794 transitions. [2023-12-25 05:21:20,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:20,319 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 794 transitions. [2023-12-25 05:21:20,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-25 05:21:20,321 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:20,321 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:20,328 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 [2023-12-25 05:21:20,524 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 [2023-12-25 05:21:20,525 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:20,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:20,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1761517249, now seen corresponding path program 1 times [2023-12-25 05:21:20,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:20,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033256896] [2023-12-25 05:21:20,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:20,526 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 [2023-12-25 05:21:20,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:20,527 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) [2023-12-25 05:21:20,528 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 [2023-12-25 05:21:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:20,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:21:20,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:20,777 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:21:20,777 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:20,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:20,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033256896] [2023-12-25 05:21:20,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033256896] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:20,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:20,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:21:20,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221455382] [2023-12-25 05:21:20,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:20,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:21:20,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:20,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:21:20,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:21:20,779 INFO L87 Difference]: Start difference. First operand 488 states and 794 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:20,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:20,864 INFO L93 Difference]: Finished difference Result 951 states and 1559 transitions. [2023-12-25 05:21:20,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:21:20,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 98 [2023-12-25 05:21:20,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:20,866 INFO L225 Difference]: With dead ends: 951 [2023-12-25 05:21:20,867 INFO L226 Difference]: Without dead ends: 488 [2023-12-25 05:21:20,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:21:20,869 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 38 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 2225 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:20,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 2225 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:21:20,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-12-25 05:21:20,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2023-12-25 05:21:20,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 373 states have (on average 1.6407506702412868) internal successors, (612), 388 states have internal predecessors, (612), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-25 05:21:20,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 793 transitions. [2023-12-25 05:21:20,879 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 793 transitions. Word has length 98 [2023-12-25 05:21:20,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:20,879 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 793 transitions. [2023-12-25 05:21:20,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:21:20,880 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 793 transitions. [2023-12-25 05:21:20,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-25 05:21:20,881 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:20,881 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:20,886 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 [2023-12-25 05:21:21,086 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 [2023-12-25 05:21:21,087 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:21,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:21,087 INFO L85 PathProgramCache]: Analyzing trace with hash 805675118, now seen corresponding path program 1 times [2023-12-25 05:21:21,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:21,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1374753364] [2023-12-25 05:21:21,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:21,087 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 [2023-12-25 05:21:21,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:21,089 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) [2023-12-25 05:21:21,090 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 (15)] Waiting until timeout for monitored process [2023-12-25 05:21:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:21,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:21:21,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:21,359 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:21:21,360 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:21,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:21,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1374753364] [2023-12-25 05:21:21,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1374753364] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:21,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:21,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:21:21,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319652965] [2023-12-25 05:21:21,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:21,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:21:21,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:21,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:21:21,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:21:21,361 INFO L87 Difference]: Start difference. First operand 488 states and 793 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:21:21,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:21,577 INFO L93 Difference]: Finished difference Result 949 states and 1554 transitions. [2023-12-25 05:21:21,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:21:21,578 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 99 [2023-12-25 05:21:21,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:21,580 INFO L225 Difference]: With dead ends: 949 [2023-12-25 05:21:21,580 INFO L226 Difference]: Without dead ends: 492 [2023-12-25 05:21:21,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:21:21,582 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 40 mSDsluCounter, 4400 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 5138 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:21,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 5138 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:21:21,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2023-12-25 05:21:21,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 490. [2023-12-25 05:21:21,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 375 states have (on average 1.6346666666666667) internal successors, (613), 390 states have internal predecessors, (613), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-25 05:21:21,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 794 transitions. [2023-12-25 05:21:21,593 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 794 transitions. Word has length 99 [2023-12-25 05:21:21,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:21,594 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 794 transitions. [2023-12-25 05:21:21,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:21:21,594 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 794 transitions. [2023-12-25 05:21:21,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-25 05:21:21,595 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:21,595 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:21,616 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 (15)] Ended with exit code 0 [2023-12-25 05:21:21,816 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 [2023-12-25 05:21:21,817 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:21,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:21,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1683885814, now seen corresponding path program 1 times [2023-12-25 05:21:21,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:21,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286695937] [2023-12-25 05:21:21,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:21,818 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 [2023-12-25 05:21:21,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:21,819 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) [2023-12-25 05:21:21,820 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 [2023-12-25 05:21:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:22,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:21:22,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:22,120 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:21:22,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:22,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:22,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286695937] [2023-12-25 05:21:22,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286695937] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:22,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:22,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:21:22,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001787222] [2023-12-25 05:21:22,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:22,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:21:22,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:22,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:21:22,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:21:22,123 INFO L87 Difference]: Start difference. First operand 490 states and 794 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:21:22,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:22,703 INFO L93 Difference]: Finished difference Result 947 states and 1574 transitions. [2023-12-25 05:21:22,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:21:22,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 100 [2023-12-25 05:21:22,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:22,705 INFO L225 Difference]: With dead ends: 947 [2023-12-25 05:21:22,705 INFO L226 Difference]: Without dead ends: 494 [2023-12-25 05:21:22,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:21:22,708 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 727 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:22,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 1862 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:21:22,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-12-25 05:21:22,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2023-12-25 05:21:22,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 378 states have (on average 1.6296296296296295) internal successors, (616), 393 states have internal predecessors, (616), 91 states have call successors, (91), 25 states have call predecessors, (91), 24 states have return successors, (91), 88 states have call predecessors, (91), 90 states have call successors, (91) [2023-12-25 05:21:22,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 798 transitions. [2023-12-25 05:21:22,720 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 798 transitions. Word has length 100 [2023-12-25 05:21:22,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:22,720 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 798 transitions. [2023-12-25 05:21:22,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:21:22,721 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 798 transitions. [2023-12-25 05:21:22,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 05:21:22,722 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:22,722 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:22,728 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 [2023-12-25 05:21:22,927 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 [2023-12-25 05:21:22,927 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:22,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:22,928 INFO L85 PathProgramCache]: Analyzing trace with hash 359507479, now seen corresponding path program 1 times [2023-12-25 05:21:22,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:22,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852683567] [2023-12-25 05:21:22,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:22,929 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 [2023-12-25 05:21:22,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:22,929 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) [2023-12-25 05:21:22,931 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 [2023-12-25 05:21:23,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:23,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:21:23,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:23,231 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-25 05:21:23,231 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:23,231 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:23,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852683567] [2023-12-25 05:21:23,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852683567] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:23,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:23,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:21:23,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763616548] [2023-12-25 05:21:23,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:23,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:21:23,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:23,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:21:23,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:21:23,235 INFO L87 Difference]: Start difference. First operand 494 states and 798 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:21:23,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:23,779 INFO L93 Difference]: Finished difference Result 956 states and 1581 transitions. [2023-12-25 05:21:23,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:21:23,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 103 [2023-12-25 05:21:23,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:23,782 INFO L225 Difference]: With dead ends: 956 [2023-12-25 05:21:23,782 INFO L226 Difference]: Without dead ends: 499 [2023-12-25 05:21:23,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:21:23,784 INFO L413 NwaCegarLoop]: 732 mSDtfsCounter, 725 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 1863 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:23,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 1863 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:21:23,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2023-12-25 05:21:23,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 499. [2023-12-25 05:21:23,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 382 states have (on average 1.6230366492146597) internal successors, (620), 397 states have internal predecessors, (620), 91 states have call successors, (91), 26 states have call predecessors, (91), 25 states have return successors, (92), 88 states have call predecessors, (92), 90 states have call successors, (92) [2023-12-25 05:21:23,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 803 transitions. [2023-12-25 05:21:23,797 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 803 transitions. Word has length 103 [2023-12-25 05:21:23,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:23,797 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 803 transitions. [2023-12-25 05:21:23,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:21:23,797 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 803 transitions. [2023-12-25 05:21:23,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-25 05:21:23,799 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:23,799 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:23,823 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 [2023-12-25 05:21:24,005 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 [2023-12-25 05:21:24,005 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:24,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:24,006 INFO L85 PathProgramCache]: Analyzing trace with hash -545412142, now seen corresponding path program 1 times [2023-12-25 05:21:24,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:24,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856071359] [2023-12-25 05:21:24,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:24,006 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 [2023-12-25 05:21:24,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:24,007 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) [2023-12-25 05:21:24,011 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 [2023-12-25 05:21:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:24,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:21:24,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:24,309 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:21:24,310 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:24,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:24,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1856071359] [2023-12-25 05:21:24,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1856071359] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:24,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:24,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:21:24,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315515457] [2023-12-25 05:21:24,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:24,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:21:24,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:24,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:21:24,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:21:24,311 INFO L87 Difference]: Start difference. First operand 499 states and 803 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:21:24,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:24,925 INFO L93 Difference]: Finished difference Result 967 states and 1590 transitions. [2023-12-25 05:21:24,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:21:24,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2023-12-25 05:21:24,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:24,928 INFO L225 Difference]: With dead ends: 967 [2023-12-25 05:21:24,928 INFO L226 Difference]: Without dead ends: 505 [2023-12-25 05:21:24,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:21:24,930 INFO L413 NwaCegarLoop]: 732 mSDtfsCounter, 727 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 1863 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:24,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 1863 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:21:24,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2023-12-25 05:21:24,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2023-12-25 05:21:24,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 387 states have (on average 1.6149870801033592) internal successors, (625), 402 states have internal predecessors, (625), 91 states have call successors, (91), 27 states have call predecessors, (91), 26 states have return successors, (93), 88 states have call predecessors, (93), 90 states have call successors, (93) [2023-12-25 05:21:24,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 809 transitions. [2023-12-25 05:21:24,948 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 809 transitions. Word has length 106 [2023-12-25 05:21:24,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:24,948 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 809 transitions. [2023-12-25 05:21:24,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:21:24,948 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 809 transitions. [2023-12-25 05:21:24,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-25 05:21:24,950 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:24,950 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:24,966 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 [2023-12-25 05:21:25,156 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 [2023-12-25 05:21:25,156 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:25,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:25,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1374251835, now seen corresponding path program 1 times [2023-12-25 05:21:25,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:25,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200792949] [2023-12-25 05:21:25,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:25,157 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:21:25,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:25,159 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) [2023-12-25 05:21:25,161 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 [2023-12-25 05:21:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:25,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:21:25,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:25,473 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-25 05:21:25,473 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:25,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:25,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1200792949] [2023-12-25 05:21:25,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1200792949] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:25,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:25,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:21:25,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197410702] [2023-12-25 05:21:25,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:25,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:21:25,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:25,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:21:25,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:21:25,477 INFO L87 Difference]: Start difference. First operand 505 states and 809 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:21:25,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:25,976 INFO L93 Difference]: Finished difference Result 980 states and 1601 transitions. [2023-12-25 05:21:25,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:21:25,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2023-12-25 05:21:25,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:25,979 INFO L225 Difference]: With dead ends: 980 [2023-12-25 05:21:25,979 INFO L226 Difference]: Without dead ends: 512 [2023-12-25 05:21:25,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:21:25,981 INFO L413 NwaCegarLoop]: 732 mSDtfsCounter, 726 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 1863 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:25,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 1863 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:21:25,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-12-25 05:21:25,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 512. [2023-12-25 05:21:25,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 393 states have (on average 1.6055979643765903) internal successors, (631), 408 states have internal predecessors, (631), 91 states have call successors, (91), 28 states have call predecessors, (91), 27 states have return successors, (94), 88 states have call predecessors, (94), 90 states have call successors, (94) [2023-12-25 05:21:25,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 816 transitions. [2023-12-25 05:21:25,995 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 816 transitions. Word has length 109 [2023-12-25 05:21:25,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:25,995 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 816 transitions. [2023-12-25 05:21:25,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:21:25,996 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 816 transitions. [2023-12-25 05:21:25,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-25 05:21:25,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:25,997 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:26,014 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 [2023-12-25 05:21:26,203 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 [2023-12-25 05:21:26,203 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:26,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:26,204 INFO L85 PathProgramCache]: Analyzing trace with hash -373371218, now seen corresponding path program 1 times [2023-12-25 05:21:26,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:26,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041591143] [2023-12-25 05:21:26,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:26,204 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 [2023-12-25 05:21:26,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:26,205 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) [2023-12-25 05:21:26,207 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 [2023-12-25 05:21:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:26,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-25 05:21:26,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:26,490 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:21:26,491 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:26,491 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:26,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041591143] [2023-12-25 05:21:26,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041591143] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:26,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:26,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:21:26,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479576720] [2023-12-25 05:21:26,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:26,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:21:26,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:26,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:21:26,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:21:26,494 INFO L87 Difference]: Start difference. First operand 512 states and 816 transitions. Second operand has 9 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:21:30,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:30,325 INFO L93 Difference]: Finished difference Result 1566 states and 2538 transitions. [2023-12-25 05:21:30,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:21:30,326 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2023-12-25 05:21:30,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:30,330 INFO L225 Difference]: With dead ends: 1566 [2023-12-25 05:21:30,330 INFO L226 Difference]: Without dead ends: 1091 [2023-12-25 05:21:30,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:21:30,332 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 1336 mSDsluCounter, 3222 mSDsCounter, 0 mSdLazyCounter, 6122 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 3911 SdHoareTripleChecker+Invalid, 6379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 6122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:30,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 3911 Invalid, 6379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 6122 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-25 05:21:30,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2023-12-25 05:21:30,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 1056. [2023-12-25 05:21:30,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 789 states have (on average 1.608365019011407) internal successors, (1269), 826 states have internal predecessors, (1269), 208 states have call successors, (208), 53 states have call predecessors, (208), 58 states have return successors, (233), 207 states have call predecessors, (233), 206 states have call successors, (233) [2023-12-25 05:21:30,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1710 transitions. [2023-12-25 05:21:30,366 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1710 transitions. Word has length 112 [2023-12-25 05:21:30,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:30,366 INFO L495 AbstractCegarLoop]: Abstraction has 1056 states and 1710 transitions. [2023-12-25 05:21:30,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:21:30,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1710 transitions. [2023-12-25 05:21:30,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-25 05:21:30,369 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:30,369 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:30,376 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 [2023-12-25 05:21:30,575 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 [2023-12-25 05:21:30,576 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:30,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:30,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1219668272, now seen corresponding path program 1 times [2023-12-25 05:21:30,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:30,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823497354] [2023-12-25 05:21:30,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:30,577 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 [2023-12-25 05:21:30,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:30,578 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) [2023-12-25 05:21:30,579 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 [2023-12-25 05:21:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:30,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:21:30,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:30,842 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:21:30,843 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:30,843 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:30,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823497354] [2023-12-25 05:21:30,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [823497354] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:30,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:30,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:21:30,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311853287] [2023-12-25 05:21:30,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:30,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:21:30,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:30,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:21:30,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:21:30,844 INFO L87 Difference]: Start difference. First operand 1056 states and 1710 transitions. Second operand has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:21:31,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:31,050 INFO L93 Difference]: Finished difference Result 2045 states and 3332 transitions. [2023-12-25 05:21:31,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:21:31,051 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 115 [2023-12-25 05:21:31,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:31,055 INFO L225 Difference]: With dead ends: 2045 [2023-12-25 05:21:31,055 INFO L226 Difference]: Without dead ends: 1017 [2023-12-25 05:21:31,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:21:31,060 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 52 mSDsluCounter, 4397 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 5135 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:31,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 5135 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:21:31,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2023-12-25 05:21:31,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 1015. [2023-12-25 05:21:31,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 759 states have (on average 1.6152832674571804) internal successors, (1226), 795 states have internal predecessors, (1226), 202 states have call successors, (202), 50 states have call predecessors, (202), 53 states have return successors, (220), 200 states have call predecessors, (220), 200 states have call successors, (220) [2023-12-25 05:21:31,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1648 transitions. [2023-12-25 05:21:31,096 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1648 transitions. Word has length 115 [2023-12-25 05:21:31,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:31,097 INFO L495 AbstractCegarLoop]: Abstraction has 1015 states and 1648 transitions. [2023-12-25 05:21:31,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:21:31,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1648 transitions. [2023-12-25 05:21:31,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-25 05:21:31,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:31,098 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:31,120 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 (21)] Ended with exit code 0 [2023-12-25 05:21:31,303 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 [2023-12-25 05:21:31,305 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:31,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:31,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1224348581, now seen corresponding path program 1 times [2023-12-25 05:21:31,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:31,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638746458] [2023-12-25 05:21:31,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:31,306 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 [2023-12-25 05:21:31,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:31,306 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) [2023-12-25 05:21:31,308 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 [2023-12-25 05:21:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:31,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:21:31,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:31,618 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:21:31,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:31,618 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:31,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638746458] [2023-12-25 05:21:31,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638746458] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:31,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:31,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:21:31,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416368824] [2023-12-25 05:21:31,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:31,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:21:31,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:31,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:21:31,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:21:31,620 INFO L87 Difference]: Start difference. First operand 1015 states and 1648 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:21:33,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:33,735 INFO L93 Difference]: Finished difference Result 2545 states and 4179 transitions. [2023-12-25 05:21:33,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 05:21:33,735 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 119 [2023-12-25 05:21:33,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:33,748 INFO L225 Difference]: With dead ends: 2545 [2023-12-25 05:21:33,748 INFO L226 Difference]: Without dead ends: 1564 [2023-12-25 05:21:33,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:21:33,754 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 1846 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 2562 mSolverCounterSat, 467 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1946 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 3029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 2562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:33,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1946 Valid, 1378 Invalid, 3029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [467 Valid, 2562 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-25 05:21:33,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2023-12-25 05:21:33,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1526. [2023-12-25 05:21:33,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1131 states have (on average 1.6180371352785146) internal successors, (1830), 1188 states have internal predecessors, (1830), 313 states have call successors, (313), 72 states have call predecessors, (313), 81 states have return successors, (356), 314 states have call predecessors, (356), 310 states have call successors, (356) [2023-12-25 05:21:33,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 2499 transitions. [2023-12-25 05:21:33,842 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 2499 transitions. Word has length 119 [2023-12-25 05:21:33,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:33,842 INFO L495 AbstractCegarLoop]: Abstraction has 1526 states and 2499 transitions. [2023-12-25 05:21:33,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:21:33,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 2499 transitions. [2023-12-25 05:21:33,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-25 05:21:33,845 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:33,845 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:33,853 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 [2023-12-25 05:21:34,051 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 [2023-12-25 05:21:34,051 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:34,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:34,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1712476692, now seen corresponding path program 1 times [2023-12-25 05:21:34,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:34,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1151995449] [2023-12-25 05:21:34,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:34,052 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 [2023-12-25 05:21:34,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:34,053 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) [2023-12-25 05:21:34,054 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 [2023-12-25 05:21:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:34,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:21:34,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:34,374 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-25 05:21:34,374 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:34,375 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:34,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1151995449] [2023-12-25 05:21:34,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1151995449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:34,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:34,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:21:34,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525248219] [2023-12-25 05:21:34,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:34,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:21:34,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:34,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:21:34,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:21:34,376 INFO L87 Difference]: Start difference. First operand 1526 states and 2499 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:21:35,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:35,086 INFO L93 Difference]: Finished difference Result 4368 states and 7216 transitions. [2023-12-25 05:21:35,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:21:35,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2023-12-25 05:21:35,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:35,101 INFO L225 Difference]: With dead ends: 4368 [2023-12-25 05:21:35,101 INFO L226 Difference]: Without dead ends: 2876 [2023-12-25 05:21:35,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:21:35,108 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 616 mSDsluCounter, 1751 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 2562 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:35,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 2562 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:21:35,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2876 states. [2023-12-25 05:21:35,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2876 to 2861. [2023-12-25 05:21:35,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2861 states, 2102 states have (on average 1.594196003805899) internal successors, (3351), 2212 states have internal predecessors, (3351), 604 states have call successors, (604), 144 states have call predecessors, (604), 154 states have return successors, (683), 599 states have call predecessors, (683), 598 states have call successors, (683) [2023-12-25 05:21:35,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2861 states to 2861 states and 4638 transitions. [2023-12-25 05:21:35,266 INFO L78 Accepts]: Start accepts. Automaton has 2861 states and 4638 transitions. Word has length 120 [2023-12-25 05:21:35,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:35,266 INFO L495 AbstractCegarLoop]: Abstraction has 2861 states and 4638 transitions. [2023-12-25 05:21:35,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:21:35,267 INFO L276 IsEmpty]: Start isEmpty. Operand 2861 states and 4638 transitions. [2023-12-25 05:21:35,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 05:21:35,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:35,268 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:35,276 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 [2023-12-25 05:21:35,473 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 [2023-12-25 05:21:35,474 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:35,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:35,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1282246703, now seen corresponding path program 1 times [2023-12-25 05:21:35,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:35,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886047625] [2023-12-25 05:21:35,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:35,475 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 [2023-12-25 05:21:35,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:35,497 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) [2023-12-25 05:21:35,498 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 [2023-12-25 05:21:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:35,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:21:35,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:35,797 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:21:35,797 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:35,797 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:35,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886047625] [2023-12-25 05:21:35,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886047625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:35,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:35,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:21:35,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199089497] [2023-12-25 05:21:35,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:35,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:21:35,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:35,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:21:35,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:21:35,799 INFO L87 Difference]: Start difference. First operand 2861 states and 4638 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:21:36,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:36,616 INFO L93 Difference]: Finished difference Result 8454 states and 13879 transitions. [2023-12-25 05:21:36,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:21:36,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2023-12-25 05:21:36,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:36,642 INFO L225 Difference]: With dead ends: 8454 [2023-12-25 05:21:36,642 INFO L226 Difference]: Without dead ends: 5627 [2023-12-25 05:21:36,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:21:36,654 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 722 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 2805 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:36,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 2805 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:21:36,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5627 states. [2023-12-25 05:21:36,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5627 to 5601. [2023-12-25 05:21:36,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5601 states, 4116 states have (on average 1.5915937803692906) internal successors, (6551), 4335 states have internal predecessors, (6551), 1179 states have call successors, (1179), 285 states have call predecessors, (1179), 305 states have return successors, (1448), 1170 states have call predecessors, (1448), 1167 states have call successors, (1448) [2023-12-25 05:21:36,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5601 states to 5601 states and 9178 transitions. [2023-12-25 05:21:36,957 INFO L78 Accepts]: Start accepts. Automaton has 5601 states and 9178 transitions. Word has length 122 [2023-12-25 05:21:36,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:36,957 INFO L495 AbstractCegarLoop]: Abstraction has 5601 states and 9178 transitions. [2023-12-25 05:21:36,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:21:36,957 INFO L276 IsEmpty]: Start isEmpty. Operand 5601 states and 9178 transitions. [2023-12-25 05:21:36,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 05:21:36,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:36,959 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:36,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-25 05:21:37,165 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 [2023-12-25 05:21:37,166 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:37,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:37,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1846024274, now seen corresponding path program 1 times [2023-12-25 05:21:37,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:37,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040689270] [2023-12-25 05:21:37,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:37,167 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 [2023-12-25 05:21:37,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:37,185 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) [2023-12-25 05:21:37,214 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 [2023-12-25 05:21:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:37,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:21:37,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:37,511 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:21:37,512 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:37,512 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:37,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040689270] [2023-12-25 05:21:37,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040689270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:37,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:37,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:21:37,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246970613] [2023-12-25 05:21:37,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:37,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:21:37,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:37,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:21:37,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:21:37,513 INFO L87 Difference]: Start difference. First operand 5601 states and 9178 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:21:37,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:37,873 INFO L93 Difference]: Finished difference Result 10014 states and 16070 transitions. [2023-12-25 05:21:37,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:21:37,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2023-12-25 05:21:37,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:37,931 INFO L225 Difference]: With dead ends: 10014 [2023-12-25 05:21:37,932 INFO L226 Difference]: Without dead ends: 6403 [2023-12-25 05:21:37,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:21:37,944 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 496 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:37,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1237 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:21:37,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6403 states. [2023-12-25 05:21:38,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6403 to 6377. [2023-12-25 05:21:38,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6377 states, 4697 states have (on average 1.5533319139876518) internal successors, (7296), 4914 states have internal predecessors, (7296), 1275 states have call successors, (1275), 372 states have call predecessors, (1275), 404 states have return successors, (1647), 1274 states have call predecessors, (1647), 1257 states have call successors, (1647) [2023-12-25 05:21:38,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6377 states to 6377 states and 10218 transitions. [2023-12-25 05:21:38,293 INFO L78 Accepts]: Start accepts. Automaton has 6377 states and 10218 transitions. Word has length 122 [2023-12-25 05:21:38,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:38,293 INFO L495 AbstractCegarLoop]: Abstraction has 6377 states and 10218 transitions. [2023-12-25 05:21:38,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:21:38,293 INFO L276 IsEmpty]: Start isEmpty. Operand 6377 states and 10218 transitions. [2023-12-25 05:21:38,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 05:21:38,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:38,295 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:38,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 05:21:38,502 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 [2023-12-25 05:21:38,502 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:38,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:38,503 INFO L85 PathProgramCache]: Analyzing trace with hash 459238864, now seen corresponding path program 1 times [2023-12-25 05:21:38,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:38,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787878633] [2023-12-25 05:21:38,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:38,504 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 [2023-12-25 05:21:38,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:38,504 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) [2023-12-25 05:21:38,539 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 [2023-12-25 05:21:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:38,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:21:38,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:38,831 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 05:21:38,832 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:38,832 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:38,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787878633] [2023-12-25 05:21:38,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787878633] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:38,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:38,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:21:38,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648390568] [2023-12-25 05:21:38,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:38,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:21:38,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:38,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:21:38,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:21:38,833 INFO L87 Difference]: Start difference. First operand 6377 states and 10218 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:21:39,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:39,948 INFO L93 Difference]: Finished difference Result 14755 states and 23800 transitions. [2023-12-25 05:21:39,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:21:39,948 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 122 [2023-12-25 05:21:39,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:39,990 INFO L225 Difference]: With dead ends: 14755 [2023-12-25 05:21:39,990 INFO L226 Difference]: Without dead ends: 10560 [2023-12-25 05:21:40,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:21:40,009 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 1032 mSDsluCounter, 2081 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 2819 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:40,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 2819 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:21:40,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10560 states. [2023-12-25 05:21:40,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10560 to 10498. [2023-12-25 05:21:40,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10498 states, 7787 states have (on average 1.5451393347887505) internal successors, (12032), 8117 states have internal predecessors, (12032), 2012 states have call successors, (2012), 621 states have call predecessors, (2012), 698 states have return successors, (2790), 2035 states have call predecessors, (2790), 1982 states have call successors, (2790) [2023-12-25 05:21:40,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10498 states to 10498 states and 16834 transitions. [2023-12-25 05:21:40,639 INFO L78 Accepts]: Start accepts. Automaton has 10498 states and 16834 transitions. Word has length 122 [2023-12-25 05:21:40,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:40,639 INFO L495 AbstractCegarLoop]: Abstraction has 10498 states and 16834 transitions. [2023-12-25 05:21:40,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:21:40,640 INFO L276 IsEmpty]: Start isEmpty. Operand 10498 states and 16834 transitions. [2023-12-25 05:21:40,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-25 05:21:40,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:40,641 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:40,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2023-12-25 05:21:40,848 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 [2023-12-25 05:21:40,849 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:40,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:40,849 INFO L85 PathProgramCache]: Analyzing trace with hash 875250779, now seen corresponding path program 1 times [2023-12-25 05:21:40,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:40,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119721168] [2023-12-25 05:21:40,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:40,850 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 [2023-12-25 05:21:40,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:40,852 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) [2023-12-25 05:21:40,884 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 [2023-12-25 05:21:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:41,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-25 05:21:41,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:41,192 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:21:41,192 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:41,192 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:41,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119721168] [2023-12-25 05:21:41,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119721168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:41,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:41,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:21:41,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052788474] [2023-12-25 05:21:41,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:41,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:21:41,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:41,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:21:41,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:21:41,195 INFO L87 Difference]: Start difference. First operand 10498 states and 16834 transitions. Second operand has 9 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (15), 4 states have call predecessors, (15), 6 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:21:44,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:44,091 INFO L93 Difference]: Finished difference Result 18816 states and 30353 transitions. [2023-12-25 05:21:44,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 05:21:44,092 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (15), 4 states have call predecessors, (15), 6 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 123 [2023-12-25 05:21:44,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:44,131 INFO L225 Difference]: With dead ends: 18816 [2023-12-25 05:21:44,132 INFO L226 Difference]: Without dead ends: 10670 [2023-12-25 05:21:44,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-12-25 05:21:44,162 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 1911 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 3432 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2013 SdHoareTripleChecker+Valid, 1892 SdHoareTripleChecker+Invalid, 3876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 3432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:44,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2013 Valid, 1892 Invalid, 3876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 3432 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-25 05:21:44,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2023-12-25 05:21:44,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 10450. [2023-12-25 05:21:44,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10450 states, 7763 states have (on average 1.5447636223109622) internal successors, (11992), 8093 states have internal predecessors, (11992), 1996 states have call successors, (1996), 613 states have call predecessors, (1996), 690 states have return successors, (2774), 2019 states have call predecessors, (2774), 1966 states have call successors, (2774) [2023-12-25 05:21:44,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10450 states to 10450 states and 16762 transitions. [2023-12-25 05:21:44,801 INFO L78 Accepts]: Start accepts. Automaton has 10450 states and 16762 transitions. Word has length 123 [2023-12-25 05:21:44,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:44,801 INFO L495 AbstractCegarLoop]: Abstraction has 10450 states and 16762 transitions. [2023-12-25 05:21:44,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (15), 4 states have call predecessors, (15), 6 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:21:44,801 INFO L276 IsEmpty]: Start isEmpty. Operand 10450 states and 16762 transitions. [2023-12-25 05:21:44,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 05:21:44,803 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:44,803 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:44,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-25 05:21:45,009 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 [2023-12-25 05:21:45,009 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:45,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:45,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1398803726, now seen corresponding path program 1 times [2023-12-25 05:21:45,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:45,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328043604] [2023-12-25 05:21:45,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:45,010 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 [2023-12-25 05:21:45,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:45,011 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) [2023-12-25 05:21:45,076 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 [2023-12-25 05:21:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:45,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:21:45,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:45,375 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 05:21:45,375 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:45,375 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:45,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328043604] [2023-12-25 05:21:45,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328043604] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:45,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:45,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:21:45,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364500818] [2023-12-25 05:21:45,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:45,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:21:45,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:45,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:21:45,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:21:45,377 INFO L87 Difference]: Start difference. First operand 10450 states and 16762 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:21:46,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:46,531 INFO L93 Difference]: Finished difference Result 18750 states and 30073 transitions. [2023-12-25 05:21:46,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:21:46,532 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 126 [2023-12-25 05:21:46,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:46,575 INFO L225 Difference]: With dead ends: 18750 [2023-12-25 05:21:46,575 INFO L226 Difference]: Without dead ends: 10482 [2023-12-25 05:21:46,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:21:46,611 INFO L413 NwaCegarLoop]: 827 mSDtfsCounter, 635 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:46,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 2845 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:21:46,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10482 states. [2023-12-25 05:21:47,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10482 to 10450. [2023-12-25 05:21:47,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10450 states, 7763 states have (on average 1.5432178281592168) internal successors, (11980), 8093 states have internal predecessors, (11980), 1996 states have call successors, (1996), 613 states have call predecessors, (1996), 690 states have return successors, (2774), 2019 states have call predecessors, (2774), 1966 states have call successors, (2774) [2023-12-25 05:21:47,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10450 states to 10450 states and 16750 transitions. [2023-12-25 05:21:47,129 INFO L78 Accepts]: Start accepts. Automaton has 10450 states and 16750 transitions. Word has length 126 [2023-12-25 05:21:47,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:47,130 INFO L495 AbstractCegarLoop]: Abstraction has 10450 states and 16750 transitions. [2023-12-25 05:21:47,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:21:47,130 INFO L276 IsEmpty]: Start isEmpty. Operand 10450 states and 16750 transitions. [2023-12-25 05:21:47,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-25 05:21:47,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:47,132 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:47,138 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 (28)] Forceful destruction successful, exit code 0 [2023-12-25 05:21:47,337 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 [2023-12-25 05:21:47,338 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:47,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:47,338 INFO L85 PathProgramCache]: Analyzing trace with hash -761385898, now seen corresponding path program 1 times [2023-12-25 05:21:47,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:47,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027071074] [2023-12-25 05:21:47,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:47,339 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 [2023-12-25 05:21:47,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:47,341 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) [2023-12-25 05:21:47,345 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 [2023-12-25 05:21:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:47,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 05:21:47,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:47,592 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 05:21:47,592 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:47,592 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:47,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027071074] [2023-12-25 05:21:47,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1027071074] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:47,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:47,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:21:47,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825468722] [2023-12-25 05:21:47,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:47,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:21:47,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:47,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:21:47,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:21:47,594 INFO L87 Difference]: Start difference. First operand 10450 states and 16750 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:21:48,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:48,258 INFO L93 Difference]: Finished difference Result 19576 states and 31728 transitions. [2023-12-25 05:21:48,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:21:48,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 133 [2023-12-25 05:21:48,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:48,307 INFO L225 Difference]: With dead ends: 19576 [2023-12-25 05:21:48,308 INFO L226 Difference]: Without dead ends: 10450 [2023-12-25 05:21:48,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:21:48,347 INFO L413 NwaCegarLoop]: 793 mSDtfsCounter, 401 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:48,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 2720 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:21:48,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10450 states. [2023-12-25 05:21:48,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10450 to 10450. [2023-12-25 05:21:48,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10450 states, 7763 states have (on average 1.5215767100347803) internal successors, (11812), 8093 states have internal predecessors, (11812), 1996 states have call successors, (1996), 613 states have call predecessors, (1996), 690 states have return successors, (2774), 2019 states have call predecessors, (2774), 1966 states have call successors, (2774) [2023-12-25 05:21:49,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10450 states to 10450 states and 16582 transitions. [2023-12-25 05:21:49,055 INFO L78 Accepts]: Start accepts. Automaton has 10450 states and 16582 transitions. Word has length 133 [2023-12-25 05:21:49,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:49,055 INFO L495 AbstractCegarLoop]: Abstraction has 10450 states and 16582 transitions. [2023-12-25 05:21:49,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:21:49,056 INFO L276 IsEmpty]: Start isEmpty. Operand 10450 states and 16582 transitions. [2023-12-25 05:21:49,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-25 05:21:49,058 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:49,059 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:49,065 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 (29)] Forceful destruction successful, exit code 0 [2023-12-25 05:21:49,264 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 [2023-12-25 05:21:49,265 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:49,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:49,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1173323175, now seen corresponding path program 1 times [2023-12-25 05:21:49,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:49,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801872051] [2023-12-25 05:21:49,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:49,266 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 [2023-12-25 05:21:49,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:49,267 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) [2023-12-25 05:21:49,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-25 05:21:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:49,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:21:49,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:49,616 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:21:49,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:49,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:49,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801872051] [2023-12-25 05:21:49,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801872051] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:49,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:49,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:21:49,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695296746] [2023-12-25 05:21:49,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:49,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:21:49,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:49,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:21:49,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:21:49,618 INFO L87 Difference]: Start difference. First operand 10450 states and 16582 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-25 05:21:50,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:50,688 INFO L93 Difference]: Finished difference Result 18366 states and 29475 transitions. [2023-12-25 05:21:50,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:21:50,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 138 [2023-12-25 05:21:50,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:50,734 INFO L225 Difference]: With dead ends: 18366 [2023-12-25 05:21:50,734 INFO L226 Difference]: Without dead ends: 10596 [2023-12-25 05:21:50,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:21:50,771 INFO L413 NwaCegarLoop]: 788 mSDtfsCounter, 680 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 2883 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:50,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 2883 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:21:50,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10596 states. [2023-12-25 05:21:51,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10596 to 10534. [2023-12-25 05:21:51,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10534 states, 7811 states have (on average 1.518371527333248) internal successors, (11860), 8165 states have internal predecessors, (11860), 2020 states have call successors, (2020), 625 states have call predecessors, (2020), 702 states have return successors, (2876), 2019 states have call predecessors, (2876), 1990 states have call successors, (2876) [2023-12-25 05:21:51,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10534 states to 10534 states and 16756 transitions. [2023-12-25 05:21:51,297 INFO L78 Accepts]: Start accepts. Automaton has 10534 states and 16756 transitions. Word has length 138 [2023-12-25 05:21:51,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:51,298 INFO L495 AbstractCegarLoop]: Abstraction has 10534 states and 16756 transitions. [2023-12-25 05:21:51,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-25 05:21:51,298 INFO L276 IsEmpty]: Start isEmpty. Operand 10534 states and 16756 transitions. [2023-12-25 05:21:51,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-25 05:21:51,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:51,300 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:51,310 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 (30)] Forceful destruction successful, exit code 0 [2023-12-25 05:21:51,505 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 [2023-12-25 05:21:51,505 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:51,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:51,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1667734941, now seen corresponding path program 1 times [2023-12-25 05:21:51,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:51,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632238916] [2023-12-25 05:21:51,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:51,506 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 [2023-12-25 05:21:51,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:51,507 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) [2023-12-25 05:21:51,509 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 [2023-12-25 05:21:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:51,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:21:51,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:51,916 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:21:51,916 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:21:52,154 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-25 05:21:52,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:52,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1632238916] [2023-12-25 05:21:52,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1632238916] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-25 05:21:52,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 05:21:52,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 13 [2023-12-25 05:21:52,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508130551] [2023-12-25 05:21:52,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:52,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:21:52,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:52,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:21:52,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-12-25 05:21:52,156 INFO L87 Difference]: Start difference. First operand 10534 states and 16756 transitions. Second operand has 8 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-12-25 05:21:54,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:54,966 INFO L93 Difference]: Finished difference Result 20688 states and 33520 transitions. [2023-12-25 05:21:54,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 05:21:54,968 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 142 [2023-12-25 05:21:54,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:55,020 INFO L225 Difference]: With dead ends: 20688 [2023-12-25 05:21:55,020 INFO L226 Difference]: Without dead ends: 12830 [2023-12-25 05:21:55,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2023-12-25 05:21:55,056 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 1423 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 2408 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 2554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 2408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:55,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 2218 Invalid, 2554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 2408 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-25 05:21:55,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12830 states. [2023-12-25 05:21:55,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12830 to 11962. [2023-12-25 05:21:55,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11962 states, 8941 states have (on average 1.5130298624314953) internal successors, (13528), 9319 states have internal predecessors, (13528), 2188 states have call successors, (2188), 749 states have call predecessors, (2188), 832 states have return successors, (3177), 2169 states have call predecessors, (3177), 2158 states have call successors, (3177) [2023-12-25 05:21:55,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11962 states to 11962 states and 18893 transitions. [2023-12-25 05:21:55,739 INFO L78 Accepts]: Start accepts. Automaton has 11962 states and 18893 transitions. Word has length 142 [2023-12-25 05:21:55,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:21:55,739 INFO L495 AbstractCegarLoop]: Abstraction has 11962 states and 18893 transitions. [2023-12-25 05:21:55,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-12-25 05:21:55,739 INFO L276 IsEmpty]: Start isEmpty. Operand 11962 states and 18893 transitions. [2023-12-25 05:21:55,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-25 05:21:55,741 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:21:55,742 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:21:55,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-25 05:21:55,947 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 [2023-12-25 05:21:55,948 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:21:55,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:21:55,948 INFO L85 PathProgramCache]: Analyzing trace with hash -704004321, now seen corresponding path program 1 times [2023-12-25 05:21:55,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:21:55,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425332429] [2023-12-25 05:21:55,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:21:55,949 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 [2023-12-25 05:21:55,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:21:55,950 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) [2023-12-25 05:21:55,951 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 [2023-12-25 05:21:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:21:56,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-25 05:21:56,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:21:56,336 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-12-25 05:21:56,336 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:21:56,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:21:56,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425332429] [2023-12-25 05:21:56,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425332429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:21:56,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:21:56,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:21:56,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346081061] [2023-12-25 05:21:56,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:21:56,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:21:56,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:21:56,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:21:56,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:21:56,337 INFO L87 Difference]: Start difference. First operand 11962 states and 18893 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:21:59,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:21:59,387 INFO L93 Difference]: Finished difference Result 23934 states and 38280 transitions. [2023-12-25 05:21:59,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 05:21:59,388 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) Word has length 142 [2023-12-25 05:21:59,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:21:59,425 INFO L225 Difference]: With dead ends: 23934 [2023-12-25 05:21:59,425 INFO L226 Difference]: Without dead ends: 6706 [2023-12-25 05:21:59,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:21:59,491 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 1695 mSDsluCounter, 1769 mSDsCounter, 0 mSdLazyCounter, 3435 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 3854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 3435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:21:59,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1796 Valid, 2133 Invalid, 3854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 3435 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-25 05:21:59,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6706 states. [2023-12-25 05:21:59,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6706 to 6654. [2023-12-25 05:21:59,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6654 states, 5105 states have (on average 1.5202742409402548) internal successors, (7761), 5299 states have internal predecessors, (7761), 1087 states have call successors, (1087), 436 states have call predecessors, (1087), 461 states have return successors, (1473), 1055 states have call predecessors, (1473), 1077 states have call successors, (1473) [2023-12-25 05:22:00,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6654 states to 6654 states and 10321 transitions. [2023-12-25 05:22:00,006 INFO L78 Accepts]: Start accepts. Automaton has 6654 states and 10321 transitions. Word has length 142 [2023-12-25 05:22:00,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:22:00,007 INFO L495 AbstractCegarLoop]: Abstraction has 6654 states and 10321 transitions. [2023-12-25 05:22:00,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:22:00,007 INFO L276 IsEmpty]: Start isEmpty. Operand 6654 states and 10321 transitions. [2023-12-25 05:22:00,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2023-12-25 05:22:00,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:22:00,025 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 13, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:22:00,040 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 (32)] Forceful destruction successful, exit code 0 [2023-12-25 05:22:00,232 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 [2023-12-25 05:22:00,232 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:22:00,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:22:00,233 INFO L85 PathProgramCache]: Analyzing trace with hash 2119233692, now seen corresponding path program 1 times [2023-12-25 05:22:00,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:22:00,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619842639] [2023-12-25 05:22:00,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:22:00,233 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:22:00,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:22:00,234 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) [2023-12-25 05:22:00,236 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 [2023-12-25 05:22:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:22:00,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 1713 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:22:00,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:22:00,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 916 trivial. 0 not checked. [2023-12-25 05:22:00,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:22:00,793 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:22:00,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619842639] [2023-12-25 05:22:00,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619842639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:22:00,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:22:00,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:22:00,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6613609] [2023-12-25 05:22:00,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:22:00,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:22:00,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:22:00,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:22:00,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:22:00,795 INFO L87 Difference]: Start difference. First operand 6654 states and 10321 transitions. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 3 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-25 05:22:01,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:22:01,179 INFO L93 Difference]: Finished difference Result 13372 states and 21060 transitions. [2023-12-25 05:22:01,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:22:01,179 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 3 states have call predecessors, (34), 2 states have call successors, (34) Word has length 452 [2023-12-25 05:22:01,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:22:01,207 INFO L225 Difference]: With dead ends: 13372 [2023-12-25 05:22:01,207 INFO L226 Difference]: Without dead ends: 7101 [2023-12-25 05:22:01,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 447 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:22:01,228 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 66 mSDsluCounter, 2947 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 3690 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:22:01,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 3690 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:22:01,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7101 states. [2023-12-25 05:22:01,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7101 to 6739. [2023-12-25 05:22:01,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6739 states, 5173 states have (on average 1.5134351440170115) internal successors, (7829), 5367 states have internal predecessors, (7829), 1087 states have call successors, (1087), 436 states have call predecessors, (1087), 478 states have return successors, (1500), 1072 states have call predecessors, (1500), 1077 states have call successors, (1500) [2023-12-25 05:22:01,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6739 states to 6739 states and 10416 transitions. [2023-12-25 05:22:01,697 INFO L78 Accepts]: Start accepts. Automaton has 6739 states and 10416 transitions. Word has length 452 [2023-12-25 05:22:01,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:22:01,698 INFO L495 AbstractCegarLoop]: Abstraction has 6739 states and 10416 transitions. [2023-12-25 05:22:01,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 3 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-25 05:22:01,698 INFO L276 IsEmpty]: Start isEmpty. Operand 6739 states and 10416 transitions. [2023-12-25 05:22:01,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2023-12-25 05:22:01,713 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:22:01,713 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:22:01,740 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 (33)] Forceful destruction successful, exit code 0 [2023-12-25 05:22:01,927 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 [2023-12-25 05:22:01,928 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:22:01,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:22:01,928 INFO L85 PathProgramCache]: Analyzing trace with hash 737450184, now seen corresponding path program 1 times [2023-12-25 05:22:01,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:22:01,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [981867220] [2023-12-25 05:22:01,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:22:01,929 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 [2023-12-25 05:22:01,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:22:01,933 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) [2023-12-25 05:22:01,938 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 [2023-12-25 05:22:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:22:02,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:22:02,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:22:02,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1147 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 771 trivial. 0 not checked. [2023-12-25 05:22:02,711 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:22:02,711 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:22:02,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [981867220] [2023-12-25 05:22:02,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [981867220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:22:02,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:22:02,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:22:02,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356602946] [2023-12-25 05:22:02,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:22:02,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:22:02,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:22:02,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:22:02,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:22:02,713 INFO L87 Difference]: Start difference. First operand 6739 states and 10416 transitions. Second operand has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 6 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) [2023-12-25 05:22:06,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:22:06,187 INFO L93 Difference]: Finished difference Result 18065 states and 28580 transitions. [2023-12-25 05:22:06,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 05:22:06,189 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 6 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) Word has length 456 [2023-12-25 05:22:06,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:22:06,250 INFO L225 Difference]: With dead ends: 18065 [2023-12-25 05:22:06,250 INFO L226 Difference]: Without dead ends: 11262 [2023-12-25 05:22:06,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:22:06,285 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 2734 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 3718 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2892 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 4386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 3718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:22:06,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2892 Valid, 1390 Invalid, 4386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 3718 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-25 05:22:06,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11262 states. [2023-12-25 05:22:06,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11262 to 10863. [2023-12-25 05:22:06,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10863 states, 8250 states have (on average 1.5012121212121212) internal successors, (12385), 8562 states have internal predecessors, (12385), 1801 states have call successors, (1801), 756 states have call predecessors, (1801), 811 states have return successors, (2652), 1763 states have call predecessors, (2652), 1787 states have call successors, (2652) [2023-12-25 05:22:07,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10863 states to 10863 states and 16838 transitions. [2023-12-25 05:22:07,024 INFO L78 Accepts]: Start accepts. Automaton has 10863 states and 16838 transitions. Word has length 456 [2023-12-25 05:22:07,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:22:07,024 INFO L495 AbstractCegarLoop]: Abstraction has 10863 states and 16838 transitions. [2023-12-25 05:22:07,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 6 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) [2023-12-25 05:22:07,025 INFO L276 IsEmpty]: Start isEmpty. Operand 10863 states and 16838 transitions. [2023-12-25 05:22:07,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2023-12-25 05:22:07,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:22:07,043 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 14, 12, 12, 12, 12, 12, 12, 12, 12, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:22:07,058 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 [2023-12-25 05:22:07,257 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 [2023-12-25 05:22:07,258 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:22:07,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:22:07,258 INFO L85 PathProgramCache]: Analyzing trace with hash -2132649472, now seen corresponding path program 1 times [2023-12-25 05:22:07,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:22:07,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2130411267] [2023-12-25 05:22:07,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:22:07,259 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 [2023-12-25 05:22:07,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:22:07,260 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) [2023-12-25 05:22:07,261 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 [2023-12-25 05:22:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:22:07,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 1671 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:22:07,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:22:07,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1297 backedges. 683 proven. 0 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2023-12-25 05:22:07,798 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:22:07,798 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:22:07,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2130411267] [2023-12-25 05:22:07,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2130411267] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:22:07,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:22:07,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:22:07,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553600917] [2023-12-25 05:22:07,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:22:07,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:22:07,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:22:07,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:22:07,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:22:07,800 INFO L87 Difference]: Start difference. First operand 10863 states and 16838 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-25 05:22:08,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:22:08,695 INFO L93 Difference]: Finished difference Result 22403 states and 35237 transitions. [2023-12-25 05:22:08,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:22:08,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) Word has length 425 [2023-12-25 05:22:08,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:22:08,735 INFO L225 Difference]: With dead ends: 22403 [2023-12-25 05:22:08,735 INFO L226 Difference]: Without dead ends: 11808 [2023-12-25 05:22:08,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:22:08,764 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 159 mSDsluCounter, 3013 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 3775 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:22:08,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 3775 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:22:08,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11808 states. [2023-12-25 05:22:09,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11808 to 10997. [2023-12-25 05:22:09,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10997 states, 8266 states have (on average 1.5015727074764094) internal successors, (12412), 8633 states have internal predecessors, (12412), 1937 states have call successors, (1937), 730 states have call predecessors, (1937), 793 states have return successors, (2780), 1900 states have call predecessors, (2780), 1923 states have call successors, (2780) [2023-12-25 05:22:09,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10997 states to 10997 states and 17129 transitions. [2023-12-25 05:22:09,368 INFO L78 Accepts]: Start accepts. Automaton has 10997 states and 17129 transitions. Word has length 425 [2023-12-25 05:22:09,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:22:09,368 INFO L495 AbstractCegarLoop]: Abstraction has 10997 states and 17129 transitions. [2023-12-25 05:22:09,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-25 05:22:09,368 INFO L276 IsEmpty]: Start isEmpty. Operand 10997 states and 17129 transitions. [2023-12-25 05:22:09,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2023-12-25 05:22:09,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:22:09,382 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 13, 12, 12, 12, 12, 12, 12, 12, 12, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:22:09,396 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 [2023-12-25 05:22:09,596 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 [2023-12-25 05:22:09,596 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:22:09,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:22:09,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1877382808, now seen corresponding path program 1 times [2023-12-25 05:22:09,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:22:09,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600331526] [2023-12-25 05:22:09,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:22:09,597 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:22:09,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:22:09,598 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) [2023-12-25 05:22:09,600 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 [2023-12-25 05:22:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:22:10,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 05:22:10,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:22:10,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1291 backedges. 751 proven. 28 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2023-12-25 05:22:10,300 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:22:10,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1291 backedges. 70 proven. 113 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked. [2023-12-25 05:22:10,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:22:10,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600331526] [2023-12-25 05:22:10,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1600331526] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:22:10,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:22:10,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 16 [2023-12-25 05:22:10,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330478996] [2023-12-25 05:22:10,856 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:22:10,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 05:22:10,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:22:10,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 05:22:10,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:22:10,858 INFO L87 Difference]: Start difference. First operand 10997 states and 17129 transitions. Second operand has 16 states, 14 states have (on average 19.071428571428573) internal successors, (267), 14 states have internal predecessors, (267), 12 states have call successors, (66), 6 states have call predecessors, (66), 8 states have return successors, (67), 12 states have call predecessors, (67), 12 states have call successors, (67) [2023-12-25 05:22:21,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:22:21,251 INFO L93 Difference]: Finished difference Result 46118 states and 76047 transitions. [2023-12-25 05:22:21,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-12-25 05:22:21,253 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 19.071428571428573) internal successors, (267), 14 states have internal predecessors, (267), 12 states have call successors, (66), 6 states have call predecessors, (66), 8 states have return successors, (67), 12 states have call predecessors, (67), 12 states have call successors, (67) Word has length 428 [2023-12-25 05:22:21,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:22:21,374 INFO L225 Difference]: With dead ends: 46118 [2023-12-25 05:22:21,375 INFO L226 Difference]: Without dead ends: 35084 [2023-12-25 05:22:21,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 904 GetRequests, 856 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=530, Invalid=1920, Unknown=0, NotChecked=0, Total=2450 [2023-12-25 05:22:21,447 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 10050 mSDsluCounter, 3492 mSDsCounter, 0 mSdLazyCounter, 9446 mSolverCounterSat, 3279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10164 SdHoareTripleChecker+Valid, 4182 SdHoareTripleChecker+Invalid, 12725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3279 IncrementalHoareTripleChecker+Valid, 9446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:22:21,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10164 Valid, 4182 Invalid, 12725 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3279 Valid, 9446 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-12-25 05:22:21,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35084 states. [2023-12-25 05:22:23,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35084 to 31239. [2023-12-25 05:22:23,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31239 states, 23114 states have (on average 1.4927316777710478) internal successors, (34503), 24217 states have internal predecessors, (34503), 5855 states have call successors, (5855), 2102 states have call predecessors, (5855), 2269 states have return successors, (8704), 5786 states have call predecessors, (8704), 5835 states have call successors, (8704) [2023-12-25 05:22:23,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31239 states to 31239 states and 49062 transitions. [2023-12-25 05:22:23,427 INFO L78 Accepts]: Start accepts. Automaton has 31239 states and 49062 transitions. Word has length 428 [2023-12-25 05:22:23,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:22:23,427 INFO L495 AbstractCegarLoop]: Abstraction has 31239 states and 49062 transitions. [2023-12-25 05:22:23,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 19.071428571428573) internal successors, (267), 14 states have internal predecessors, (267), 12 states have call successors, (66), 6 states have call predecessors, (66), 8 states have return successors, (67), 12 states have call predecessors, (67), 12 states have call successors, (67) [2023-12-25 05:22:23,428 INFO L276 IsEmpty]: Start isEmpty. Operand 31239 states and 49062 transitions. [2023-12-25 05:22:23,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2023-12-25 05:22:23,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:22:23,444 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:22:23,457 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 (36)] Forceful destruction successful, exit code 0 [2023-12-25 05:22:23,657 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 [2023-12-25 05:22:23,657 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:22:23,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:22:23,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1921379335, now seen corresponding path program 1 times [2023-12-25 05:22:23,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:22:23,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [122770445] [2023-12-25 05:22:23,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:22:23,658 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 [2023-12-25 05:22:23,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:22:23,666 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) [2023-12-25 05:22:23,667 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 [2023-12-25 05:22:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:22:24,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 1746 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:22:24,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:22:24,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1254 backedges. 785 proven. 26 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2023-12-25 05:22:24,438 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:22:25,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1254 backedges. 35 proven. 123 refuted. 0 times theorem prover too weak. 1096 trivial. 0 not checked. [2023-12-25 05:22:25,158 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:22:25,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [122770445] [2023-12-25 05:22:25,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [122770445] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:22:25,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:22:25,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 18 [2023-12-25 05:22:25,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971226655] [2023-12-25 05:22:25,158 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:22:25,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 05:22:25,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:22:25,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 05:22:25,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:22:25,160 INFO L87 Difference]: Start difference. First operand 31239 states and 49062 transitions. Second operand has 18 states, 14 states have (on average 25.785714285714285) internal successors, (361), 16 states have internal predecessors, (361), 15 states have call successors, (93), 6 states have call predecessors, (93), 8 states have return successors, (91), 13 states have call predecessors, (91), 15 states have call successors, (91) [2023-12-25 05:22:42,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:22:42,202 INFO L93 Difference]: Finished difference Result 156540 states and 261969 transitions. [2023-12-25 05:22:42,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-25 05:22:42,204 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 25.785714285714285) internal successors, (361), 16 states have internal predecessors, (361), 15 states have call successors, (93), 6 states have call predecessors, (93), 8 states have return successors, (91), 13 states have call predecessors, (91), 15 states have call successors, (91) Word has length 473 [2023-12-25 05:22:42,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:22:43,023 INFO L225 Difference]: With dead ends: 156540 [2023-12-25 05:22:43,024 INFO L226 Difference]: Without dead ends: 125771 [2023-12-25 05:22:43,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 998 GetRequests, 952 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=448, Invalid=1808, Unknown=0, NotChecked=0, Total=2256 [2023-12-25 05:22:43,510 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 12631 mSDsluCounter, 2794 mSDsCounter, 0 mSdLazyCounter, 7789 mSolverCounterSat, 3905 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12789 SdHoareTripleChecker+Valid, 3455 SdHoareTripleChecker+Invalid, 11694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3905 IncrementalHoareTripleChecker+Valid, 7789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:22:43,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12789 Valid, 3455 Invalid, 11694 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3905 Valid, 7789 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-12-25 05:22:43,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125771 states. [2023-12-25 05:22:50,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125771 to 114190. [2023-12-25 05:22:50,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114190 states, 83174 states have (on average 1.4941688508428115) internal successors, (124276), 87797 states have internal predecessors, (124276), 22816 states have call successors, (22816), 7475 states have call predecessors, (22816), 8199 states have return successors, (34873), 22604 states have call predecessors, (34873), 22796 states have call successors, (34873) [2023-12-25 05:22:52,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114190 states to 114190 states and 181965 transitions. [2023-12-25 05:22:52,596 INFO L78 Accepts]: Start accepts. Automaton has 114190 states and 181965 transitions. Word has length 473 [2023-12-25 05:22:52,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:22:52,596 INFO L495 AbstractCegarLoop]: Abstraction has 114190 states and 181965 transitions. [2023-12-25 05:22:52,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 25.785714285714285) internal successors, (361), 16 states have internal predecessors, (361), 15 states have call successors, (93), 6 states have call predecessors, (93), 8 states have return successors, (91), 13 states have call predecessors, (91), 15 states have call successors, (91) [2023-12-25 05:22:52,596 INFO L276 IsEmpty]: Start isEmpty. Operand 114190 states and 181965 transitions. [2023-12-25 05:22:52,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2023-12-25 05:22:52,615 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:22:52,615 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 14, 12, 12, 12, 12, 12, 12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:22:52,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2023-12-25 05:22:52,830 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 [2023-12-25 05:22:52,830 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:22:52,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:22:52,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1194582719, now seen corresponding path program 1 times [2023-12-25 05:22:52,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:22:52,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974393171] [2023-12-25 05:22:52,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:22:52,831 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 [2023-12-25 05:22:52,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:22:52,834 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) [2023-12-25 05:22:52,836 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 [2023-12-25 05:22:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:22:53,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 1669 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:22:53,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:22:53,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1285 backedges. 893 proven. 4 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2023-12-25 05:22:53,568 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:22:53,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1285 backedges. 78 proven. 65 refuted. 0 times theorem prover too weak. 1142 trivial. 0 not checked. [2023-12-25 05:22:53,965 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:22:53,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974393171] [2023-12-25 05:22:53,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974393171] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:22:53,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:22:53,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2023-12-25 05:22:53,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831508999] [2023-12-25 05:22:53,966 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:22:53,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-25 05:22:53,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:22:53,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-25 05:22:53,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-12-25 05:22:53,968 INFO L87 Difference]: Start difference. First operand 114190 states and 181965 transitions. Second operand has 15 states, 15 states have (on average 17.466666666666665) internal successors, (262), 13 states have internal predecessors, (262), 9 states have call successors, (67), 5 states have call predecessors, (67), 11 states have return successors, (71), 11 states have call predecessors, (71), 9 states have call successors, (71) [2023-12-25 05:23:21,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:21,391 INFO L93 Difference]: Finished difference Result 357882 states and 589712 transitions. [2023-12-25 05:23:21,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 05:23:21,393 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 17.466666666666665) internal successors, (262), 13 states have internal predecessors, (262), 9 states have call successors, (67), 5 states have call predecessors, (67), 11 states have return successors, (71), 11 states have call predecessors, (71), 9 states have call successors, (71) Word has length 425 [2023-12-25 05:23:21,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:23,243 INFO L225 Difference]: With dead ends: 357882 [2023-12-25 05:23:23,243 INFO L226 Difference]: Without dead ends: 243778 [2023-12-25 05:23:24,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 863 GetRequests, 841 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2023-12-25 05:23:24,332 INFO L413 NwaCegarLoop]: 709 mSDtfsCounter, 4603 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 7007 mSolverCounterSat, 1292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4705 SdHoareTripleChecker+Valid, 3768 SdHoareTripleChecker+Invalid, 8299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1292 IncrementalHoareTripleChecker+Valid, 7007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:24,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4705 Valid, 3768 Invalid, 8299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1292 Valid, 7007 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-25 05:23:24,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243778 states. [2023-12-25 05:23:41,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243778 to 234810. [2023-12-25 05:23:41,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234810 states, 166667 states have (on average 1.4891010217979563) internal successors, (248184), 177266 states have internal predecessors, (248184), 51431 states have call successors, (51431), 14141 states have call predecessors, (51431), 16711 states have return successors, (80869), 51669 states have call predecessors, (80869), 51423 states have call successors, (80869) [2023-12-25 05:23:45,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234810 states to 234810 states and 380484 transitions. [2023-12-25 05:23:45,215 INFO L78 Accepts]: Start accepts. Automaton has 234810 states and 380484 transitions. Word has length 425 [2023-12-25 05:23:45,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:45,215 INFO L495 AbstractCegarLoop]: Abstraction has 234810 states and 380484 transitions. [2023-12-25 05:23:45,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 17.466666666666665) internal successors, (262), 13 states have internal predecessors, (262), 9 states have call successors, (67), 5 states have call predecessors, (67), 11 states have return successors, (71), 11 states have call predecessors, (71), 9 states have call successors, (71) [2023-12-25 05:23:45,215 INFO L276 IsEmpty]: Start isEmpty. Operand 234810 states and 380484 transitions. [2023-12-25 05:23:45,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2023-12-25 05:23:45,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:45,227 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:45,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2023-12-25 05:23:45,440 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 [2023-12-25 05:23:45,441 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:45,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:45,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1360180700, now seen corresponding path program 1 times [2023-12-25 05:23:45,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:45,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326183117] [2023-12-25 05:23:45,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:45,442 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 [2023-12-25 05:23:45,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:45,443 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) [2023-12-25 05:23:45,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-25 05:23:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:46,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 1759 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:46,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:46,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 634 proven. 0 refuted. 0 times theorem prover too weak. 686 trivial. 0 not checked. [2023-12-25 05:23:46,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:46,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:46,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326183117] [2023-12-25 05:23:46,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1326183117] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:46,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:46,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:46,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033046571] [2023-12-25 05:23:46,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:46,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:46,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:46,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:46,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:46,210 INFO L87 Difference]: Start difference. First operand 234810 states and 380484 transitions. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 2 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2023-12-25 05:24:12,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:24:12,235 INFO L93 Difference]: Finished difference Result 474804 states and 782371 transitions. [2023-12-25 05:24:12,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:24:12,235 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 2 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 486 [2023-12-25 05:24:12,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:24:14,099 INFO L225 Difference]: With dead ends: 474804 [2023-12-25 05:24:14,099 INFO L226 Difference]: Without dead ends: 240182 [2023-12-25 05:24:16,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:24:16,266 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 101 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:24:16,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 2010 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:24:16,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240182 states. [2023-12-25 05:24:34,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240182 to 240182. [2023-12-25 05:24:34,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240182 states, 171459 states have (on average 1.4840632454406009) internal successors, (254456), 182198 states have internal predecessors, (254456), 51431 states have call successors, (51431), 14581 states have call predecessors, (51431), 17291 states have return successors, (80869), 51669 states have call predecessors, (80869), 51423 states have call successors, (80869) [2023-12-25 05:24:38,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240182 states to 240182 states and 386756 transitions. [2023-12-25 05:24:38,972 INFO L78 Accepts]: Start accepts. Automaton has 240182 states and 386756 transitions. Word has length 486 [2023-12-25 05:24:38,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:24:38,973 INFO L495 AbstractCegarLoop]: Abstraction has 240182 states and 386756 transitions. [2023-12-25 05:24:38,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 2 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2023-12-25 05:24:38,973 INFO L276 IsEmpty]: Start isEmpty. Operand 240182 states and 386756 transitions. [2023-12-25 05:24:38,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2023-12-25 05:24:38,984 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:24:38,985 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:24:39,001 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 [2023-12-25 05:24:39,200 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 [2023-12-25 05:24:39,201 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:24:39,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:24:39,202 INFO L85 PathProgramCache]: Analyzing trace with hash -31386230, now seen corresponding path program 1 times [2023-12-25 05:24:39,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:24:39,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793114432] [2023-12-25 05:24:39,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:24:39,203 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 [2023-12-25 05:24:39,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:24:39,221 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) [2023-12-25 05:24:39,268 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 [2023-12-25 05:24:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:24:39,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 1769 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:24:39,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:24:39,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1365 backedges. 701 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2023-12-25 05:24:39,784 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:24:39,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:24:39,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793114432] [2023-12-25 05:24:39,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793114432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:24:39,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:24:39,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:24:39,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104021888] [2023-12-25 05:24:39,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:24:39,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:24:39,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:24:39,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:24:39,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:24:39,785 INFO L87 Difference]: Start difference. First operand 240182 states and 386756 transitions. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-25 05:25:06,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:25:06,096 INFO L93 Difference]: Finished difference Result 487292 states and 797587 transitions. [2023-12-25 05:25:06,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:25:06,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 496 [2023-12-25 05:25:06,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:25:08,303 INFO L225 Difference]: With dead ends: 487292 [2023-12-25 05:25:08,304 INFO L226 Difference]: Without dead ends: 247322 [2023-12-25 05:25:10,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:25:10,478 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 99 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:25:10,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 2023 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:25:10,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247322 states. [2023-12-25 05:25:29,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247322 to 247322. [2023-12-25 05:25:29,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247322 states, 178007 states have (on average 1.4749644676894729) internal successors, (262554), 188888 states have internal predecessors, (262554), 51431 states have call successors, (51431), 15031 states have call predecessors, (51431), 17883 states have return successors, (80869), 51669 states have call predecessors, (80869), 51423 states have call successors, (80869) [2023-12-25 05:25:33,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247322 states to 247322 states and 394854 transitions. [2023-12-25 05:25:33,272 INFO L78 Accepts]: Start accepts. Automaton has 247322 states and 394854 transitions. Word has length 496 [2023-12-25 05:25:33,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:25:33,272 INFO L495 AbstractCegarLoop]: Abstraction has 247322 states and 394854 transitions. [2023-12-25 05:25:33,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-25 05:25:33,273 INFO L276 IsEmpty]: Start isEmpty. Operand 247322 states and 394854 transitions. [2023-12-25 05:25:33,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-25 05:25:33,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:25:33,285 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:25:33,299 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 (40)] Forceful destruction successful, exit code 0 [2023-12-25 05:25:33,498 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 [2023-12-25 05:25:33,500 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:25:33,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:25:33,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1800067106, now seen corresponding path program 1 times [2023-12-25 05:25:33,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:25:33,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879389533] [2023-12-25 05:25:33,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:25:33,501 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 [2023-12-25 05:25:33,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:25:33,503 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:25:33,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-25 05:25:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:25:34,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:25:34,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:25:34,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1393 backedges. 758 proven. 0 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2023-12-25 05:25:34,084 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:25:34,084 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:25:34,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879389533] [2023-12-25 05:25:34,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1879389533] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:25:34,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:25:34,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:25:34,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295610026] [2023-12-25 05:25:34,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:25:34,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:25:34,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:25:34,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:25:34,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:25:34,086 INFO L87 Difference]: Start difference. First operand 247322 states and 394854 transitions. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2023-12-25 05:26:00,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:26:00,202 INFO L93 Difference]: Finished difference Result 503220 states and 815951 transitions. [2023-12-25 05:26:00,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:26:00,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 504 [2023-12-25 05:26:00,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:26:02,163 INFO L225 Difference]: With dead ends: 503220 [2023-12-25 05:26:02,164 INFO L226 Difference]: Without dead ends: 256110 [2023-12-25 05:26:04,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:26:04,608 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 103 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:26:04,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 2023 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:26:04,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256110 states. [2023-12-25 05:26:23,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256110 to 256110. [2023-12-25 05:26:24,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256110 states, 186203 states have (on average 1.4623824535587504) internal successors, (272300), 197226 states have internal predecessors, (272300), 51431 states have call successors, (51431), 15481 states have call predecessors, (51431), 18475 states have return successors, (80869), 51669 states have call predecessors, (80869), 51423 states have call successors, (80869) [2023-12-25 05:26:27,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256110 states to 256110 states and 404600 transitions. [2023-12-25 05:26:27,941 INFO L78 Accepts]: Start accepts. Automaton has 256110 states and 404600 transitions. Word has length 504 [2023-12-25 05:26:27,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:26:27,942 INFO L495 AbstractCegarLoop]: Abstraction has 256110 states and 404600 transitions. [2023-12-25 05:26:27,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2023-12-25 05:26:27,942 INFO L276 IsEmpty]: Start isEmpty. Operand 256110 states and 404600 transitions. [2023-12-25 05:26:27,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2023-12-25 05:26:27,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:26:27,954 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:26:27,969 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 (41)] Forceful destruction successful, exit code 0 [2023-12-25 05:26:28,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:26:28,168 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:26:28,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:26:28,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1736617692, now seen corresponding path program 1 times [2023-12-25 05:26:28,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:26:28,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441707887] [2023-12-25 05:26:28,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:26:28,169 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 [2023-12-25 05:26:28,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:26:28,170 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:26:28,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-25 05:26:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:26:28,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:26:28,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:26:28,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1336 backedges. 874 proven. 22 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2023-12-25 05:26:28,915 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:26:29,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1336 backedges. 47 proven. 131 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2023-12-25 05:26:29,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:26:29,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [441707887] [2023-12-25 05:26:29,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [441707887] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:26:29,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:26:29,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2023-12-25 05:26:29,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29964767] [2023-12-25 05:26:29,639 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:26:29,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-25 05:26:29,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:26:29,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-25 05:26:29,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2023-12-25 05:26:29,641 INFO L87 Difference]: Start difference. First operand 256110 states and 404600 transitions. Second operand has 17 states, 16 states have (on average 24.375) internal successors, (390), 16 states have internal predecessors, (390), 14 states have call successors, (93), 7 states have call predecessors, (93), 9 states have return successors, (91), 14 states have call predecessors, (91), 14 states have call successors, (91)