/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_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:19:11,474 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:19:11,545 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:19:11,548 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:19:11,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:19:11,564 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:19:11,564 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:19:11,564 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:19:11,565 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:19:11,568 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:19:11,568 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:19:11,568 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:19:11,569 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:19:11,570 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:19:11,570 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:19:11,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:19:11,571 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:19:11,571 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:19:11,571 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:19:11,571 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:19:11,572 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:19:11,572 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:19:11,573 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:19:11,573 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:19:11,573 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:19:11,573 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:19:11,573 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:19:11,573 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:19:11,573 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:19:11,574 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:19:11,574 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:19:11,574 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:19:11,575 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:19:11,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:19:11,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:19:11,575 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:19:11,575 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:19:11,575 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:19:11,575 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:19:11,575 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:19:11,575 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:19:11,576 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:19:11,576 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:19:11,576 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:19:11,576 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:19:11,576 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:19:11,576 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:19:11,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:19:11,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:19:11,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:19:11,793 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:19:11,794 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:19:11,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product20.cil.c [2023-12-16 17:19:12,902 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:19:13,151 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:19:13,151 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product20.cil.c [2023-12-16 17:19:13,178 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72cd92614/ff035ff6a31049ae85babdc6eef0e19f/FLAGc96a3daef [2023-12-16 17:19:13,192 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72cd92614/ff035ff6a31049ae85babdc6eef0e19f [2023-12-16 17:19:13,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:19:13,195 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:19:13,198 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:19:13,198 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:19:13,202 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:19:13,202 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:19:13" (1/1) ... [2023-12-16 17:19:13,203 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@600bccdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:13, skipping insertion in model container [2023-12-16 17:19:13,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:19:13" (1/1) ... [2023-12-16 17:19:13,264 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:19:13,632 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_product20.cil.c[69987,70000] [2023-12-16 17:19:13,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:19:13,653 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:19:13,676 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:19:13,772 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_product20.cil.c[69987,70000] [2023-12-16 17:19:13,773 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:19:13,781 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:19:13,787 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2023-12-16 17:19:13,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [414] [2023-12-16 17:19:13,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [517] [2023-12-16 17:19:13,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [558] [2023-12-16 17:19:13,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [911] [2023-12-16 17:19:13,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [946] [2023-12-16 17:19:13,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [960] [2023-12-16 17:19:13,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1627] [2023-12-16 17:19:13,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3197] [2023-12-16 17:19:13,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3315] [2023-12-16 17:19:13,865 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_product20.cil.c[69987,70000] [2023-12-16 17:19:13,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:19:13,886 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:19:13,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:13 WrapperNode [2023-12-16 17:19:13,886 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:19:13,887 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:19:13,888 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:19:13,888 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:19:13,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:13" (1/1) ... [2023-12-16 17:19:13,923 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:13" (1/1) ... [2023-12-16 17:19:13,973 INFO L138 Inliner]: procedures = 95, calls = 339, calls flagged for inlining = 26, calls inlined = 22, statements flattened = 1000 [2023-12-16 17:19:13,973 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:19:13,973 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:19:13,974 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:19:13,974 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:19:13,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:13" (1/1) ... [2023-12-16 17:19:13,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:13" (1/1) ... [2023-12-16 17:19:13,991 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:13" (1/1) ... [2023-12-16 17:19:14,018 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]. [2023-12-16 17:19:14,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:13" (1/1) ... [2023-12-16 17:19:14,019 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:13" (1/1) ... [2023-12-16 17:19:14,032 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:13" (1/1) ... [2023-12-16 17:19:14,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:13" (1/1) ... [2023-12-16 17:19:14,058 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:13" (1/1) ... [2023-12-16 17:19:14,075 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:13" (1/1) ... [2023-12-16 17:19:14,088 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:19:14,089 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:19:14,089 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:19:14,089 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:19:14,090 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:13" (1/1) ... [2023-12-16 17:19:14,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:19:14,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:19:14,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 17:19:14,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 17:19:14,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:19:14,148 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-16 17:19:14,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-16 17:19:14,148 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-16 17:19:14,148 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-16 17:19:14,148 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-12-16 17:19:14,148 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-12-16 17:19:14,148 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-16 17:19:14,148 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-16 17:19:14,148 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-16 17:19:14,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-16 17:19:14,149 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-16 17:19:14,149 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-16 17:19:14,149 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-16 17:19:14,149 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-16 17:19:14,149 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-16 17:19:14,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-16 17:19:14,149 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 17:19:14,150 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 17:19:14,150 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 17:19:14,150 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 17:19:14,150 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-16 17:19:14,150 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-16 17:19:14,150 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-16 17:19:14,150 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-16 17:19:14,150 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-16 17:19:14,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-16 17:19:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-16 17:19:14,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-16 17:19:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:19:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 17:19:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 17:19:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 17:19:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 17:19:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-16 17:19:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-16 17:19:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-16 17:19:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-16 17:19:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-16 17:19:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-16 17:19:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-16 17:19:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-16 17:19:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-16 17:19:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-16 17:19:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-16 17:19:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-16 17:19:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-16 17:19:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-16 17:19:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-16 17:19:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-16 17:19:14,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-16 17:19:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-16 17:19:14,153 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-16 17:19:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-16 17:19:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-16 17:19:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-16 17:19:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-16 17:19:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-16 17:19:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-16 17:19:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-16 17:19:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-16 17:19:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-16 17:19:14,155 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-16 17:19:14,155 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-16 17:19:14,155 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-16 17:19:14,155 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-16 17:19:14,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-16 17:19:14,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:19:14,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:19:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-16 17:19:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-16 17:19:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2023-12-16 17:19:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2023-12-16 17:19:14,312 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:19:14,316 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:19:15,183 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:19:15,248 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:19:15,248 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 17:19:15,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:19:15 BoogieIcfgContainer [2023-12-16 17:19:15,248 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:19:15,250 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:19:15,250 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:19:15,252 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:19:15,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:19:13" (1/3) ... [2023-12-16 17:19:15,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3377b995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:19:15, skipping insertion in model container [2023-12-16 17:19:15,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:13" (2/3) ... [2023-12-16 17:19:15,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3377b995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:19:15, skipping insertion in model container [2023-12-16 17:19:15,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:19:15" (3/3) ... [2023-12-16 17:19:15,254 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product20.cil.c [2023-12-16 17:19:15,266 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:19:15,266 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:19:15,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:19:15,305 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;@99614b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:19:15,306 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:19:15,310 INFO L276 IsEmpty]: Start isEmpty. Operand has 523 states, 399 states have (on average 1.7067669172932332) internal successors, (681), 417 states have internal predecessors, (681), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-16 17:19:15,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 17:19:15,318 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:15,319 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:15,319 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:15,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:15,323 INFO L85 PathProgramCache]: Analyzing trace with hash 543481051, now seen corresponding path program 1 times [2023-12-16 17:19:15,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:15,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763731990] [2023-12-16 17:19:15,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:15,332 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:15,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:15,334 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:15,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 17:19:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:15,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:15,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:15,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:19:15,657 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:15,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:15,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763731990] [2023-12-16 17:19:15,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1763731990] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:15,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:15,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:15,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232892996] [2023-12-16 17:19:15,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:15,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:15,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:15,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:15,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:15,683 INFO L87 Difference]: Start difference. First operand has 523 states, 399 states have (on average 1.7067669172932332) internal successors, (681), 417 states have internal predecessors, (681), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:15,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:15,885 INFO L93 Difference]: Finished difference Result 1045 states and 1756 transitions. [2023-12-16 17:19:15,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:19:15,887 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-12-16 17:19:15,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:15,905 INFO L225 Difference]: With dead ends: 1045 [2023-12-16 17:19:15,906 INFO L226 Difference]: Without dead ends: 522 [2023-12-16 17:19:15,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:19:15,926 INFO L413 NwaCegarLoop]: 841 mSDtfsCounter, 15 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:15,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2516 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:15,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-12-16 17:19:15,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 522. [2023-12-16 17:19:16,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 399 states have (on average 1.6892230576441103) internal successors, (674), 416 states have internal predecessors, (674), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:19:16,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 867 transitions. [2023-12-16 17:19:16,007 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 867 transitions. Word has length 52 [2023-12-16 17:19:16,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:16,007 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 867 transitions. [2023-12-16 17:19:16,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:16,008 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 867 transitions. [2023-12-16 17:19:16,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 17:19:16,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:16,010 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:16,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:16,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:16,217 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:16,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:16,218 INFO L85 PathProgramCache]: Analyzing trace with hash 870369132, now seen corresponding path program 1 times [2023-12-16 17:19:16,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:16,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349620432] [2023-12-16 17:19:16,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:16,218 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:16,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:16,220 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:16,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 17:19:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:16,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:16,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:16,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:19:16,486 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:16,487 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:16,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349620432] [2023-12-16 17:19:16,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349620432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:16,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:16,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:16,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658219256] [2023-12-16 17:19:16,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:16,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:16,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:16,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:16,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:16,489 INFO L87 Difference]: Start difference. First operand 522 states and 867 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:16,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:16,611 INFO L93 Difference]: Finished difference Result 1032 states and 1716 transitions. [2023-12-16 17:19:16,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:19:16,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 53 [2023-12-16 17:19:16,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:16,617 INFO L225 Difference]: With dead ends: 1032 [2023-12-16 17:19:16,618 INFO L226 Difference]: Without dead ends: 522 [2023-12-16 17:19:16,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:19:16,623 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 12 mSDsluCounter, 1663 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2499 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:16,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2499 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:16,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-12-16 17:19:16,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 522. [2023-12-16 17:19:16,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 399 states have (on average 1.68671679197995) internal successors, (673), 416 states have internal predecessors, (673), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:19:16,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 866 transitions. [2023-12-16 17:19:16,662 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 866 transitions. Word has length 53 [2023-12-16 17:19:16,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:16,663 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 866 transitions. [2023-12-16 17:19:16,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:16,663 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 866 transitions. [2023-12-16 17:19:16,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 17:19:16,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:16,668 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:16,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:16,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:16,876 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:16,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:16,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1975543159, now seen corresponding path program 1 times [2023-12-16 17:19:16,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:16,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2108436397] [2023-12-16 17:19:16,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:16,878 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:16,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:16,880 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:16,884 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 (4)] Waiting until timeout for monitored process [2023-12-16 17:19:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:17,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:17,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:17,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:19:17,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:17,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:17,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2108436397] [2023-12-16 17:19:17,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2108436397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:17,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:17,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:17,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346963626] [2023-12-16 17:19:17,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:17,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:17,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:17,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:17,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:17,125 INFO L87 Difference]: Start difference. First operand 522 states and 866 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:17,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:17,211 INFO L93 Difference]: Finished difference Result 1032 states and 1715 transitions. [2023-12-16 17:19:17,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:19:17,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2023-12-16 17:19:17,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:17,215 INFO L225 Difference]: With dead ends: 1032 [2023-12-16 17:19:17,215 INFO L226 Difference]: Without dead ends: 522 [2023-12-16 17:19:17,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:19:17,218 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 10 mSDsluCounter, 1663 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2499 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 [2023-12-16 17:19:17,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2499 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:17,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-12-16 17:19:17,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 522. [2023-12-16 17:19:17,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 399 states have (on average 1.6842105263157894) internal successors, (672), 416 states have internal predecessors, (672), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:19:17,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 865 transitions. [2023-12-16 17:19:17,233 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 865 transitions. Word has length 54 [2023-12-16 17:19:17,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:17,233 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 865 transitions. [2023-12-16 17:19:17,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:17,233 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 865 transitions. [2023-12-16 17:19:17,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-16 17:19:17,234 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:17,234 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:17,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:17,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:17,440 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:17,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:17,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1437777736, now seen corresponding path program 1 times [2023-12-16 17:19:17,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:17,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323468815] [2023-12-16 17:19:17,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:17,441 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:17,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:17,442 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:17,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 17:19:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:17,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:17,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:17,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:19:17,699 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:17,699 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:17,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323468815] [2023-12-16 17:19:17,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323468815] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:17,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:17,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:17,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411101140] [2023-12-16 17:19:17,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:17,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:17,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:17,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:17,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:17,703 INFO L87 Difference]: Start difference. First operand 522 states and 865 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:17,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:17,789 INFO L93 Difference]: Finished difference Result 1032 states and 1714 transitions. [2023-12-16 17:19:17,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:19:17,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2023-12-16 17:19:17,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:17,793 INFO L225 Difference]: With dead ends: 1032 [2023-12-16 17:19:17,793 INFO L226 Difference]: Without dead ends: 522 [2023-12-16 17:19:17,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:19:17,798 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 8 mSDsluCounter, 1663 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2499 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 [2023-12-16 17:19:17,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2499 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:17,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-12-16 17:19:17,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 522. [2023-12-16 17:19:17,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 399 states have (on average 1.681704260651629) internal successors, (671), 416 states have internal predecessors, (671), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:19:17,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 864 transitions. [2023-12-16 17:19:17,815 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 864 transitions. Word has length 55 [2023-12-16 17:19:17,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:17,815 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 864 transitions. [2023-12-16 17:19:17,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:17,816 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 864 transitions. [2023-12-16 17:19:17,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-16 17:19:17,816 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:17,816 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:17,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:18,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:18,041 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:18,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:18,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1508496915, now seen corresponding path program 1 times [2023-12-16 17:19:18,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:18,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819728996] [2023-12-16 17:19:18,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:18,042 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:18,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:18,046 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:18,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 17:19:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:18,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:18,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:18,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:19:18,272 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:18,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:18,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819728996] [2023-12-16 17:19:18,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819728996] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:18,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:18,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:18,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069815936] [2023-12-16 17:19:18,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:18,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:18,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:18,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:18,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:18,274 INFO L87 Difference]: Start difference. First operand 522 states and 864 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:18,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:18,351 INFO L93 Difference]: Finished difference Result 1032 states and 1713 transitions. [2023-12-16 17:19:18,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:19:18,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2023-12-16 17:19:18,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:18,354 INFO L225 Difference]: With dead ends: 1032 [2023-12-16 17:19:18,354 INFO L226 Difference]: Without dead ends: 522 [2023-12-16 17:19:18,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:19:18,356 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 6 mSDsluCounter, 1663 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2499 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 [2023-12-16 17:19:18,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2499 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:18,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-12-16 17:19:18,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 522. [2023-12-16 17:19:18,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 399 states have (on average 1.6791979949874687) internal successors, (670), 416 states have internal predecessors, (670), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:19:18,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 863 transitions. [2023-12-16 17:19:18,369 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 863 transitions. Word has length 56 [2023-12-16 17:19:18,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:18,369 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 863 transitions. [2023-12-16 17:19:18,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:18,370 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 863 transitions. [2023-12-16 17:19:18,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 17:19:18,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:18,370 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:18,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:18,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:18,576 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:18,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:18,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1032597724, now seen corresponding path program 1 times [2023-12-16 17:19:18,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:18,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409880921] [2023-12-16 17:19:18,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:18,577 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 [2023-12-16 17:19:18,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:18,578 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:18,600 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 (7)] Waiting until timeout for monitored process [2023-12-16 17:19:18,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:18,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:19:18,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:18,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:19:18,808 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:18,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:18,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409880921] [2023-12-16 17:19:18,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409880921] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:18,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:18,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:19:18,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644584467] [2023-12-16 17:19:18,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:18,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:19:18,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:18,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:19:18,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:19:18,810 INFO L87 Difference]: Start difference. First operand 522 states and 863 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:19:18,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:18,990 INFO L93 Difference]: Finished difference Result 1042 states and 1729 transitions. [2023-12-16 17:19:18,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:19:18,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 57 [2023-12-16 17:19:18,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:18,993 INFO L225 Difference]: With dead ends: 1042 [2023-12-16 17:19:18,993 INFO L226 Difference]: Without dead ends: 536 [2023-12-16 17:19:18,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:19:18,996 INFO L413 NwaCegarLoop]: 834 mSDtfsCounter, 115 mSDsluCounter, 4076 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 4910 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:18,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 4910 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:18,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2023-12-16 17:19:19,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 534. [2023-12-16 17:19:19,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 408 states have (on average 1.6764705882352942) internal successors, (684), 427 states have internal predecessors, (684), 98 states have call successors, (98), 26 states have call predecessors, (98), 27 states have return successors, (100), 94 states have call predecessors, (100), 97 states have call successors, (100) [2023-12-16 17:19:19,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 882 transitions. [2023-12-16 17:19:19,013 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 882 transitions. Word has length 57 [2023-12-16 17:19:19,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:19,013 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 882 transitions. [2023-12-16 17:19:19,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:19:19,014 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 882 transitions. [2023-12-16 17:19:19,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 17:19:19,014 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:19,014 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:19,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:19,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:19,225 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:19,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:19,226 INFO L85 PathProgramCache]: Analyzing trace with hash 2079022275, now seen corresponding path program 1 times [2023-12-16 17:19:19,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:19,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367506392] [2023-12-16 17:19:19,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:19,226 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:19,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:19,227 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:19,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 17:19:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:19,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:19,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:19,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:19:19,416 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:19,416 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:19,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [367506392] [2023-12-16 17:19:19,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [367506392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:19,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:19,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:19,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675041033] [2023-12-16 17:19:19,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:19,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:19,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:19,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:19,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:19,418 INFO L87 Difference]: Start difference. First operand 534 states and 882 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:19,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:19,497 INFO L93 Difference]: Finished difference Result 1048 states and 1739 transitions. [2023-12-16 17:19:19,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:19:19,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2023-12-16 17:19:19,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:19,500 INFO L225 Difference]: With dead ends: 1048 [2023-12-16 17:19:19,500 INFO L226 Difference]: Without dead ends: 530 [2023-12-16 17:19:19,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:19:19,502 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 6 mSDsluCounter, 1663 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2498 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:19,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2498 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:19,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2023-12-16 17:19:19,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2023-12-16 17:19:19,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 406 states have (on average 1.6773399014778325) internal successors, (681), 424 states have internal predecessors, (681), 97 states have call successors, (97), 26 states have call predecessors, (97), 26 states have return successors, (97), 93 states have call predecessors, (97), 96 states have call successors, (97) [2023-12-16 17:19:19,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 875 transitions. [2023-12-16 17:19:19,523 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 875 transitions. Word has length 57 [2023-12-16 17:19:19,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:19,523 INFO L495 AbstractCegarLoop]: Abstraction has 530 states and 875 transitions. [2023-12-16 17:19:19,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:19,523 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 875 transitions. [2023-12-16 17:19:19,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 17:19:19,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:19,524 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:19,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:19,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:19,729 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:19,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:19,730 INFO L85 PathProgramCache]: Analyzing trace with hash -982291979, now seen corresponding path program 1 times [2023-12-16 17:19:19,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:19,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571191873] [2023-12-16 17:19:19,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:19,730 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:19,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:19,732 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:19,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 17:19:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:19,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:19,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:19,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:19:19,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:19,942 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:19,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571191873] [2023-12-16 17:19:19,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571191873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:19,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:19,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:19,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818490824] [2023-12-16 17:19:19,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:19,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:19,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:19,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:19,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:19,943 INFO L87 Difference]: Start difference. First operand 530 states and 875 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:20,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:20,101 INFO L93 Difference]: Finished difference Result 1071 states and 1781 transitions. [2023-12-16 17:19:20,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:19:20,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2023-12-16 17:19:20,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:20,104 INFO L225 Difference]: With dead ends: 1071 [2023-12-16 17:19:20,104 INFO L226 Difference]: Without dead ends: 543 [2023-12-16 17:19:20,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:19:20,107 INFO L413 NwaCegarLoop]: 792 mSDtfsCounter, 112 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 2329 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:20,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 2329 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:20,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-12-16 17:19:20,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 535. [2023-12-16 17:19:20,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 411 states have (on average 1.6642335766423357) internal successors, (684), 428 states have internal predecessors, (684), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:19:20,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 877 transitions. [2023-12-16 17:19:20,119 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 877 transitions. Word has length 58 [2023-12-16 17:19:20,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:20,119 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 877 transitions. [2023-12-16 17:19:20,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:20,119 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 877 transitions. [2023-12-16 17:19:20,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 17:19:20,120 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:20,120 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:20,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:20,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:20,325 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:20,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:20,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1646675815, now seen corresponding path program 1 times [2023-12-16 17:19:20,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:20,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [666140721] [2023-12-16 17:19:20,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:20,326 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:20,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:20,327 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:20,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 17:19:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:20,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:20,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:20,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:19:20,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:20,527 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:20,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [666140721] [2023-12-16 17:19:20,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [666140721] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:20,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:20,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:20,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830645899] [2023-12-16 17:19:20,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:20,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:20,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:20,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:20,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:20,528 INFO L87 Difference]: Start difference. First operand 535 states and 877 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:20,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:20,654 INFO L93 Difference]: Finished difference Result 1024 states and 1679 transitions. [2023-12-16 17:19:20,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:19:20,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2023-12-16 17:19:20,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:20,657 INFO L225 Difference]: With dead ends: 1024 [2023-12-16 17:19:20,657 INFO L226 Difference]: Without dead ends: 535 [2023-12-16 17:19:20,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:19:20,659 INFO L413 NwaCegarLoop]: 793 mSDtfsCounter, 77 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:20,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 2330 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:20,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-12-16 17:19:20,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2023-12-16 17:19:20,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 411 states have (on average 1.6545012165450121) internal successors, (680), 428 states have internal predecessors, (680), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:19:20,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 873 transitions. [2023-12-16 17:19:20,670 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 873 transitions. Word has length 59 [2023-12-16 17:19:20,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:20,670 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 873 transitions. [2023-12-16 17:19:20,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:20,671 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 873 transitions. [2023-12-16 17:19:20,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 17:19:20,671 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:20,671 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:20,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:20,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:20,877 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:20,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:20,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1221848186, now seen corresponding path program 1 times [2023-12-16 17:19:20,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:20,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619370789] [2023-12-16 17:19:20,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:20,878 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:20,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:20,879 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:20,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 17:19:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:21,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:21,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:21,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:19:21,098 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:21,098 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:21,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619370789] [2023-12-16 17:19:21,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619370789] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:21,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:21,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:21,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629681772] [2023-12-16 17:19:21,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:21,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:21,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:21,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:21,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:21,100 INFO L87 Difference]: Start difference. First operand 535 states and 873 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:21,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:21,255 INFO L93 Difference]: Finished difference Result 1024 states and 1675 transitions. [2023-12-16 17:19:21,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:19:21,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2023-12-16 17:19:21,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:21,258 INFO L225 Difference]: With dead ends: 1024 [2023-12-16 17:19:21,258 INFO L226 Difference]: Without dead ends: 535 [2023-12-16 17:19:21,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:19:21,260 INFO L413 NwaCegarLoop]: 793 mSDtfsCounter, 72 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:21,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 2330 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:21,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-12-16 17:19:21,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2023-12-16 17:19:21,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 411 states have (on average 1.6447688564476886) internal successors, (676), 428 states have internal predecessors, (676), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:19:21,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 869 transitions. [2023-12-16 17:19:21,271 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 869 transitions. Word has length 60 [2023-12-16 17:19:21,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:21,271 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 869 transitions. [2023-12-16 17:19:21,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:21,271 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 869 transitions. [2023-12-16 17:19:21,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 17:19:21,272 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:21,272 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:21,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:21,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:21,477 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:21,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:21,478 INFO L85 PathProgramCache]: Analyzing trace with hash 964856058, now seen corresponding path program 1 times [2023-12-16 17:19:21,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:21,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456549193] [2023-12-16 17:19:21,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:21,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:21,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:21,479 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:21,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 17:19:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:21,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:19:21,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:21,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:19:21,711 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:21,711 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:21,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456549193] [2023-12-16 17:19:21,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456549193] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:21,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:21,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:19:21,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486158125] [2023-12-16 17:19:21,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:21,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:19:21,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:21,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:19:21,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:19:21,712 INFO L87 Difference]: Start difference. First operand 535 states and 869 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:19:21,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:21,859 INFO L93 Difference]: Finished difference Result 1032 states and 1684 transitions. [2023-12-16 17:19:21,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:19:21,859 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 60 [2023-12-16 17:19:21,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:21,862 INFO L225 Difference]: With dead ends: 1032 [2023-12-16 17:19:21,862 INFO L226 Difference]: Without dead ends: 522 [2023-12-16 17:19:21,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:19:21,864 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 106 mSDsluCounter, 3996 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 4818 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:21,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 4818 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:21,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-12-16 17:19:21,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 514. [2023-12-16 17:19:21,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 390 states have (on average 1.6384615384615384) internal successors, (639), 407 states have internal predecessors, (639), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:19:21,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 832 transitions. [2023-12-16 17:19:21,877 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 832 transitions. Word has length 60 [2023-12-16 17:19:21,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:21,877 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 832 transitions. [2023-12-16 17:19:21,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:19:21,877 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 832 transitions. [2023-12-16 17:19:21,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 17:19:21,877 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:21,878 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:21,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:22,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:22,083 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:22,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:22,083 INFO L85 PathProgramCache]: Analyzing trace with hash 618642956, now seen corresponding path program 1 times [2023-12-16 17:19:22,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:22,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934301618] [2023-12-16 17:19:22,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:22,084 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:22,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:22,085 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:22,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 17:19:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:22,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:22,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:22,290 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:19:22,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:22,291 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:22,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934301618] [2023-12-16 17:19:22,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934301618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:22,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:22,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:22,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282255108] [2023-12-16 17:19:22,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:22,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:22,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:22,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:22,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:22,292 INFO L87 Difference]: Start difference. First operand 514 states and 832 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:22,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:22,386 INFO L93 Difference]: Finished difference Result 1003 states and 1634 transitions. [2023-12-16 17:19:22,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:19:22,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2023-12-16 17:19:22,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:22,389 INFO L225 Difference]: With dead ends: 1003 [2023-12-16 17:19:22,389 INFO L226 Difference]: Without dead ends: 514 [2023-12-16 17:19:22,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:19:22,391 INFO L413 NwaCegarLoop]: 793 mSDtfsCounter, 40 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:22,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 2330 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:22,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2023-12-16 17:19:22,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2023-12-16 17:19:22,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 390 states have (on average 1.6358974358974359) internal successors, (638), 407 states have internal predecessors, (638), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:19:22,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 831 transitions. [2023-12-16 17:19:22,402 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 831 transitions. Word has length 61 [2023-12-16 17:19:22,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:22,402 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 831 transitions. [2023-12-16 17:19:22,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:22,402 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 831 transitions. [2023-12-16 17:19:22,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 17:19:22,403 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:22,403 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:22,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:22,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:22,608 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:22,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:22,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1219300609, now seen corresponding path program 1 times [2023-12-16 17:19:22,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:22,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373524468] [2023-12-16 17:19:22,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:22,609 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:22,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:22,610 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:22,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 17:19:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:22,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:22,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:22,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:19:22,836 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:22,836 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:22,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373524468] [2023-12-16 17:19:22,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373524468] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:22,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:22,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:22,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599154118] [2023-12-16 17:19:22,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:22,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:22,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:22,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:22,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:22,838 INFO L87 Difference]: Start difference. First operand 514 states and 831 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:22,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:22,934 INFO L93 Difference]: Finished difference Result 1003 states and 1633 transitions. [2023-12-16 17:19:22,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:19:22,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2023-12-16 17:19:22,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:22,937 INFO L225 Difference]: With dead ends: 1003 [2023-12-16 17:19:22,937 INFO L226 Difference]: Without dead ends: 514 [2023-12-16 17:19:22,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:19:22,939 INFO L413 NwaCegarLoop]: 793 mSDtfsCounter, 38 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:22,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 2330 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:22,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2023-12-16 17:19:22,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2023-12-16 17:19:22,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 390 states have (on average 1.6333333333333333) internal successors, (637), 407 states have internal predecessors, (637), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:19:22,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 830 transitions. [2023-12-16 17:19:22,949 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 830 transitions. Word has length 62 [2023-12-16 17:19:22,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:22,949 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 830 transitions. [2023-12-16 17:19:22,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:22,950 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 830 transitions. [2023-12-16 17:19:22,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-16 17:19:22,950 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:22,950 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:22,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:23,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:23,156 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:23,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:23,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1615540401, now seen corresponding path program 1 times [2023-12-16 17:19:23,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:23,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749685995] [2023-12-16 17:19:23,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:23,157 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:23,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:23,158 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:23,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 17:19:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:23,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:19:23,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:23,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:19:23,410 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:23,410 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:23,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749685995] [2023-12-16 17:19:23,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1749685995] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:23,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:23,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:19:23,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352667291] [2023-12-16 17:19:23,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:23,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:19:23,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:23,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:19:23,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:19:23,411 INFO L87 Difference]: Start difference. First operand 514 states and 830 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:19:23,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:23,609 INFO L93 Difference]: Finished difference Result 1001 states and 1628 transitions. [2023-12-16 17:19:23,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:19:23,609 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 63 [2023-12-16 17:19:23,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:23,612 INFO L225 Difference]: With dead ends: 1001 [2023-12-16 17:19:23,612 INFO L226 Difference]: Without dead ends: 518 [2023-12-16 17:19:23,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:19:23,614 INFO L413 NwaCegarLoop]: 773 mSDtfsCounter, 40 mSDsluCounter, 4610 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 5383 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:23,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 5383 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:19:23,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2023-12-16 17:19:23,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 516. [2023-12-16 17:19:23,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 392 states have (on average 1.6275510204081634) internal successors, (638), 409 states have internal predecessors, (638), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 17:19:23,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 831 transitions. [2023-12-16 17:19:23,624 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 831 transitions. Word has length 63 [2023-12-16 17:19:23,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:23,625 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 831 transitions. [2023-12-16 17:19:23,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:19:23,625 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 831 transitions. [2023-12-16 17:19:23,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 17:19:23,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:23,625 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:23,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:23,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:23,836 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:23,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:23,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1133376940, now seen corresponding path program 1 times [2023-12-16 17:19:23,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:23,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494496605] [2023-12-16 17:19:23,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:23,837 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:23,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:23,838 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:23,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 17:19:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:24,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:19:24,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:24,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:19:24,201 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:24,201 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:24,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494496605] [2023-12-16 17:19:24,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [494496605] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:24,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:24,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:19:24,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548882913] [2023-12-16 17:19:24,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:24,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:19:24,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:24,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:19:24,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:19:24,203 INFO L87 Difference]: Start difference. First operand 516 states and 831 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:24,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:24,364 INFO L93 Difference]: Finished difference Result 1472 states and 2415 transitions. [2023-12-16 17:19:24,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:19:24,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2023-12-16 17:19:24,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:24,370 INFO L225 Difference]: With dead ends: 1472 [2023-12-16 17:19:24,370 INFO L226 Difference]: Without dead ends: 993 [2023-12-16 17:19:24,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:19:24,374 INFO L413 NwaCegarLoop]: 881 mSDtfsCounter, 756 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:24,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 1638 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:24,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2023-12-16 17:19:24,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 930. [2023-12-16 17:19:24,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 714 states have (on average 1.645658263305322) internal successors, (1175), 740 states have internal predecessors, (1175), 170 states have call successors, (170), 47 states have call predecessors, (170), 45 states have return successors, (175), 157 states have call predecessors, (175), 168 states have call successors, (175) [2023-12-16 17:19:24,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1520 transitions. [2023-12-16 17:19:24,413 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1520 transitions. Word has length 64 [2023-12-16 17:19:24,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:24,414 INFO L495 AbstractCegarLoop]: Abstraction has 930 states and 1520 transitions. [2023-12-16 17:19:24,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:19:24,414 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1520 transitions. [2023-12-16 17:19:24,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 17:19:24,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:24,417 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:24,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:24,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:24,622 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:24,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:24,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1661244757, now seen corresponding path program 1 times [2023-12-16 17:19:24,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:24,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1334931762] [2023-12-16 17:19:24,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:24,623 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:24,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:24,624 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:24,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 17:19:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:24,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:19:24,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:24,927 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:19:24,928 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:24,928 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:24,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1334931762] [2023-12-16 17:19:24,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1334931762] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:24,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:24,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:19:24,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313175980] [2023-12-16 17:19:24,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:24,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:19:24,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:24,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:19:24,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:19:24,929 INFO L87 Difference]: Start difference. First operand 930 states and 1520 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:19:25,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:25,392 INFO L93 Difference]: Finished difference Result 2142 states and 3479 transitions. [2023-12-16 17:19:25,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:19:25,392 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 114 [2023-12-16 17:19:25,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:25,397 INFO L225 Difference]: With dead ends: 2142 [2023-12-16 17:19:25,397 INFO L226 Difference]: Without dead ends: 1249 [2023-12-16 17:19:25,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:19:25,401 INFO L413 NwaCegarLoop]: 885 mSDtfsCounter, 585 mSDsluCounter, 2893 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 3778 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:25,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 3778 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:19:25,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2023-12-16 17:19:25,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1243. [2023-12-16 17:19:25,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 940 states have (on average 1.5851063829787233) internal successors, (1490), 963 states have internal predecessors, (1490), 231 states have call successors, (231), 71 states have call predecessors, (231), 71 states have return successors, (261), 222 states have call predecessors, (261), 227 states have call successors, (261) [2023-12-16 17:19:25,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1982 transitions. [2023-12-16 17:19:25,459 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1982 transitions. Word has length 114 [2023-12-16 17:19:25,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:25,460 INFO L495 AbstractCegarLoop]: Abstraction has 1243 states and 1982 transitions. [2023-12-16 17:19:25,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:19:25,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1982 transitions. [2023-12-16 17:19:25,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 17:19:25,464 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:25,464 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:25,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:25,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:25,671 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:25,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:25,672 INFO L85 PathProgramCache]: Analyzing trace with hash -848845766, now seen corresponding path program 1 times [2023-12-16 17:19:25,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:25,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551806115] [2023-12-16 17:19:25,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:25,672 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:25,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:25,673 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:25,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 17:19:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:25,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:19:25,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:26,019 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 17:19:26,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:26,020 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:26,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551806115] [2023-12-16 17:19:26,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551806115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:26,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:26,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:26,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122111499] [2023-12-16 17:19:26,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:26,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:19:26,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:26,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:19:26,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:19:26,022 INFO L87 Difference]: Start difference. First operand 1243 states and 1982 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, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 17:19:26,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:26,686 INFO L93 Difference]: Finished difference Result 2465 states and 4055 transitions. [2023-12-16 17:19:26,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:19:26,686 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, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 115 [2023-12-16 17:19:26,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:26,692 INFO L225 Difference]: With dead ends: 2465 [2023-12-16 17:19:26,692 INFO L226 Difference]: Without dead ends: 1259 [2023-12-16 17:19:26,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:19:26,697 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 759 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:26,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 1943 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 17:19:26,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2023-12-16 17:19:26,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1259. [2023-12-16 17:19:26,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 952 states have (on average 1.5777310924369747) internal successors, (1502), 975 states have internal predecessors, (1502), 231 states have call successors, (231), 75 states have call predecessors, (231), 75 states have return successors, (265), 222 states have call predecessors, (265), 227 states have call successors, (265) [2023-12-16 17:19:26,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1998 transitions. [2023-12-16 17:19:26,772 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1998 transitions. Word has length 115 [2023-12-16 17:19:26,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:26,773 INFO L495 AbstractCegarLoop]: Abstraction has 1259 states and 1998 transitions. [2023-12-16 17:19:26,773 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, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 17:19:26,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1998 transitions. [2023-12-16 17:19:26,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 17:19:26,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:26,775 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:26,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:26,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:26,984 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:26,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:26,985 INFO L85 PathProgramCache]: Analyzing trace with hash -2051281142, now seen corresponding path program 1 times [2023-12-16 17:19:26,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:26,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947785821] [2023-12-16 17:19:26,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:26,985 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:26,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:26,986 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:26,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 17:19:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:27,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:19:27,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:27,319 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-16 17:19:27,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:27,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:27,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947785821] [2023-12-16 17:19:27,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947785821] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:27,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:27,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:27,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806497062] [2023-12-16 17:19:27,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:27,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:19:27,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:27,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:19:27,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:19:27,323 INFO L87 Difference]: Start difference. First operand 1259 states and 1998 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 17:19:27,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:27,964 INFO L93 Difference]: Finished difference Result 2501 states and 4087 transitions. [2023-12-16 17:19:27,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:19:27,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 118 [2023-12-16 17:19:27,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:27,971 INFO L225 Difference]: With dead ends: 2501 [2023-12-16 17:19:27,971 INFO L226 Difference]: Without dead ends: 1279 [2023-12-16 17:19:27,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:19:27,976 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 745 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 1944 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:27,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 1944 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 17:19:27,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2023-12-16 17:19:28,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1279. [2023-12-16 17:19:28,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 968 states have (on average 1.5681818181818181) internal successors, (1518), 991 states have internal predecessors, (1518), 231 states have call successors, (231), 79 states have call predecessors, (231), 79 states have return successors, (269), 222 states have call predecessors, (269), 227 states have call successors, (269) [2023-12-16 17:19:28,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 2018 transitions. [2023-12-16 17:19:28,031 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 2018 transitions. Word has length 118 [2023-12-16 17:19:28,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:28,031 INFO L495 AbstractCegarLoop]: Abstraction has 1279 states and 2018 transitions. [2023-12-16 17:19:28,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 17:19:28,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 2018 transitions. [2023-12-16 17:19:28,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 17:19:28,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:28,033 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:28,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:28,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:28,238 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:28,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:28,238 INFO L85 PathProgramCache]: Analyzing trace with hash -965341642, now seen corresponding path program 1 times [2023-12-16 17:19:28,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:28,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966156331] [2023-12-16 17:19:28,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:28,239 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:28,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:28,240 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:28,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-16 17:19:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:28,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:19:28,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:28,555 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-16 17:19:28,555 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:28,556 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:28,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966156331] [2023-12-16 17:19:28,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1966156331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:28,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:28,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:28,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989704215] [2023-12-16 17:19:28,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:28,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:19:28,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:28,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:19:28,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:19:28,558 INFO L87 Difference]: Start difference. First operand 1279 states and 2018 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 17:19:29,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:29,192 INFO L93 Difference]: Finished difference Result 2545 states and 4127 transitions. [2023-12-16 17:19:29,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:19:29,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 121 [2023-12-16 17:19:29,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:29,198 INFO L225 Difference]: With dead ends: 2545 [2023-12-16 17:19:29,198 INFO L226 Difference]: Without dead ends: 1303 [2023-12-16 17:19:29,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:19:29,204 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 748 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 1944 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:29,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 1944 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 17:19:29,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2023-12-16 17:19:29,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1303. [2023-12-16 17:19:29,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 988 states have (on average 1.55668016194332) internal successors, (1538), 1011 states have internal predecessors, (1538), 231 states have call successors, (231), 83 states have call predecessors, (231), 83 states have return successors, (273), 222 states have call predecessors, (273), 227 states have call successors, (273) [2023-12-16 17:19:29,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 2042 transitions. [2023-12-16 17:19:29,245 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 2042 transitions. Word has length 121 [2023-12-16 17:19:29,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:29,246 INFO L495 AbstractCegarLoop]: Abstraction has 1303 states and 2042 transitions. [2023-12-16 17:19:29,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 17:19:29,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 2042 transitions. [2023-12-16 17:19:29,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-16 17:19:29,269 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:29,269 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:29,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:29,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:29,477 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:29,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:29,477 INFO L85 PathProgramCache]: Analyzing trace with hash 907950590, now seen corresponding path program 1 times [2023-12-16 17:19:29,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:29,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [540487528] [2023-12-16 17:19:29,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:29,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:29,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:29,479 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:29,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 17:19:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:29,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:19:29,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:29,839 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-16 17:19:29,840 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:29,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:29,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [540487528] [2023-12-16 17:19:29,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [540487528] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:29,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:29,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:29,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086623622] [2023-12-16 17:19:29,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:29,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:19:29,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:29,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:19:29,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:19:29,842 INFO L87 Difference]: Start difference. First operand 1303 states and 2042 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 17:19:30,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:30,428 INFO L93 Difference]: Finished difference Result 2597 states and 4175 transitions. [2023-12-16 17:19:30,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:19:30,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 124 [2023-12-16 17:19:30,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:30,434 INFO L225 Difference]: With dead ends: 2597 [2023-12-16 17:19:30,435 INFO L226 Difference]: Without dead ends: 1331 [2023-12-16 17:19:30,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:19:30,440 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 755 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 1944 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:30,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 1944 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:19:30,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2023-12-16 17:19:30,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1331. [2023-12-16 17:19:30,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1331 states, 1012 states have (on average 1.5434782608695652) internal successors, (1562), 1035 states have internal predecessors, (1562), 231 states have call successors, (231), 87 states have call predecessors, (231), 87 states have return successors, (277), 222 states have call predecessors, (277), 227 states have call successors, (277) [2023-12-16 17:19:30,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 2070 transitions. [2023-12-16 17:19:30,488 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 2070 transitions. Word has length 124 [2023-12-16 17:19:30,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:30,488 INFO L495 AbstractCegarLoop]: Abstraction has 1331 states and 2070 transitions. [2023-12-16 17:19:30,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 17:19:30,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 2070 transitions. [2023-12-16 17:19:30,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-16 17:19:30,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:30,491 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:30,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:30,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:30,699 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:30,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:30,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1682634190, now seen corresponding path program 1 times [2023-12-16 17:19:30,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:30,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827047461] [2023-12-16 17:19:30,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:30,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:30,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:30,701 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:30,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-16 17:19:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:30,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 17:19:30,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:31,127 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 38 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:19:31,127 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:19:31,517 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-16 17:19:31,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:31,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827047461] [2023-12-16 17:19:31,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1827047461] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:19:31,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:19:31,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2023-12-16 17:19:31,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467623690] [2023-12-16 17:19:31,518 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:19:31,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-16 17:19:31,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:31,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-16 17:19:31,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2023-12-16 17:19:31,519 INFO L87 Difference]: Start difference. First operand 1331 states and 2070 transitions. Second operand has 18 states, 16 states have (on average 8.5) internal successors, (136), 14 states have internal predecessors, (136), 8 states have call successors, (32), 6 states have call predecessors, (32), 12 states have return successors, (33), 12 states have call predecessors, (33), 8 states have call successors, (33) [2023-12-16 17:19:38,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:38,306 INFO L93 Difference]: Finished difference Result 4230 states and 6765 transitions. [2023-12-16 17:19:38,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 17:19:38,306 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 8.5) internal successors, (136), 14 states have internal predecessors, (136), 8 states have call successors, (32), 6 states have call predecessors, (32), 12 states have return successors, (33), 12 states have call predecessors, (33), 8 states have call successors, (33) Word has length 127 [2023-12-16 17:19:38,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:38,319 INFO L225 Difference]: With dead ends: 4230 [2023-12-16 17:19:38,319 INFO L226 Difference]: Without dead ends: 2936 [2023-12-16 17:19:38,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=192, Invalid=738, Unknown=0, NotChecked=0, Total=930 [2023-12-16 17:19:38,326 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 2832 mSDsluCounter, 4416 mSDsCounter, 0 mSdLazyCounter, 10067 mSolverCounterSat, 1054 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2912 SdHoareTripleChecker+Valid, 5201 SdHoareTripleChecker+Invalid, 11121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1054 IncrementalHoareTripleChecker+Valid, 10067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:38,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2912 Valid, 5201 Invalid, 11121 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1054 Valid, 10067 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-12-16 17:19:38,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2023-12-16 17:19:38,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 2774. [2023-12-16 17:19:38,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2076 states have (on average 1.535645472061657) internal successors, (3188), 2133 states have internal predecessors, (3188), 498 states have call successors, (498), 171 states have call predecessors, (498), 199 states have return successors, (680), 502 states have call predecessors, (680), 490 states have call successors, (680) [2023-12-16 17:19:38,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 4366 transitions. [2023-12-16 17:19:38,461 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 4366 transitions. Word has length 127 [2023-12-16 17:19:38,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:38,462 INFO L495 AbstractCegarLoop]: Abstraction has 2774 states and 4366 transitions. [2023-12-16 17:19:38,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 8.5) internal successors, (136), 14 states have internal predecessors, (136), 8 states have call successors, (32), 6 states have call predecessors, (32), 12 states have return successors, (33), 12 states have call predecessors, (33), 8 states have call successors, (33) [2023-12-16 17:19:38,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 4366 transitions. [2023-12-16 17:19:38,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 17:19:38,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:38,469 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:38,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:38,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:38,677 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:38,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:38,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1989440842, now seen corresponding path program 1 times [2023-12-16 17:19:38,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:38,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [124501666] [2023-12-16 17:19:38,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:38,678 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:38,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:38,679 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:38,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 17:19:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:38,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:19:38,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:38,942 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-16 17:19:38,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:38,942 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:38,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [124501666] [2023-12-16 17:19:38,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [124501666] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:38,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:38,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:19:38,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285570843] [2023-12-16 17:19:38,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:38,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:19:38,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:38,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:19:38,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:19:38,944 INFO L87 Difference]: Start difference. First operand 2774 states and 4366 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-16 17:19:39,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:39,258 INFO L93 Difference]: Finished difference Result 5392 states and 8511 transitions. [2023-12-16 17:19:39,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:19:39,258 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 130 [2023-12-16 17:19:39,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:39,270 INFO L225 Difference]: With dead ends: 5392 [2023-12-16 17:19:39,270 INFO L226 Difference]: Without dead ends: 2646 [2023-12-16 17:19:39,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:19:39,275 INFO L413 NwaCegarLoop]: 773 mSDtfsCounter, 52 mSDsluCounter, 4607 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 5380 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:39,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 5380 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:19:39,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2023-12-16 17:19:39,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 2638. [2023-12-16 17:19:39,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2638 states, 1974 states have (on average 1.5430597771023302) internal successors, (3046), 2030 states have internal predecessors, (3046), 478 states have call successors, (478), 159 states have call predecessors, (478), 185 states have return successors, (632), 481 states have call predecessors, (632), 470 states have call successors, (632) [2023-12-16 17:19:39,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2638 states to 2638 states and 4156 transitions. [2023-12-16 17:19:39,368 INFO L78 Accepts]: Start accepts. Automaton has 2638 states and 4156 transitions. Word has length 130 [2023-12-16 17:19:39,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:39,368 INFO L495 AbstractCegarLoop]: Abstraction has 2638 states and 4156 transitions. [2023-12-16 17:19:39,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-16 17:19:39,368 INFO L276 IsEmpty]: Start isEmpty. Operand 2638 states and 4156 transitions. [2023-12-16 17:19:39,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-16 17:19:39,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:39,370 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:39,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:39,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:39,577 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:39,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:39,578 INFO L85 PathProgramCache]: Analyzing trace with hash -304915296, now seen corresponding path program 1 times [2023-12-16 17:19:39,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:39,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54082559] [2023-12-16 17:19:39,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:39,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:39,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:39,579 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:39,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-16 17:19:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:39,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 17:19:39,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:40,041 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:19:40,042 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:19:40,328 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-16 17:19:40,328 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:40,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54082559] [2023-12-16 17:19:40,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54082559] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:19:40,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:19:40,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-12-16 17:19:40,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875418098] [2023-12-16 17:19:40,328 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:19:40,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 17:19:40,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:40,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 17:19:40,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:19:40,330 INFO L87 Difference]: Start difference. First operand 2638 states and 4156 transitions. Second operand has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 12 states have internal predecessors, (138), 8 states have call successors, (33), 6 states have call predecessors, (33), 10 states have return successors, (33), 10 states have call predecessors, (33), 8 states have call successors, (33) [2023-12-16 17:19:44,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:44,610 INFO L93 Difference]: Finished difference Result 6694 states and 10758 transitions. [2023-12-16 17:19:44,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 17:19:44,610 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 12 states have internal predecessors, (138), 8 states have call successors, (33), 6 states have call predecessors, (33), 10 states have return successors, (33), 10 states have call predecessors, (33), 8 states have call successors, (33) Word has length 134 [2023-12-16 17:19:44,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:44,630 INFO L225 Difference]: With dead ends: 6694 [2023-12-16 17:19:44,630 INFO L226 Difference]: Without dead ends: 4090 [2023-12-16 17:19:44,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2023-12-16 17:19:44,639 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 4136 mSDsluCounter, 2553 mSDsCounter, 0 mSdLazyCounter, 6278 mSolverCounterSat, 1304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4207 SdHoareTripleChecker+Valid, 3297 SdHoareTripleChecker+Invalid, 7582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1304 IncrementalHoareTripleChecker+Valid, 6278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:44,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4207 Valid, 3297 Invalid, 7582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1304 Valid, 6278 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-16 17:19:44,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4090 states. [2023-12-16 17:19:44,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4090 to 3944. [2023-12-16 17:19:44,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3944 states, 2939 states have (on average 1.5423613473970739) internal successors, (4533), 3020 states have internal predecessors, (4533), 725 states have call successors, (725), 231 states have call predecessors, (725), 279 states have return successors, (973), 744 states have call predecessors, (973), 713 states have call successors, (973) [2023-12-16 17:19:44,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 6231 transitions. [2023-12-16 17:19:44,822 INFO L78 Accepts]: Start accepts. Automaton has 3944 states and 6231 transitions. Word has length 134 [2023-12-16 17:19:44,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:44,822 INFO L495 AbstractCegarLoop]: Abstraction has 3944 states and 6231 transitions. [2023-12-16 17:19:44,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 12 states have internal predecessors, (138), 8 states have call successors, (33), 6 states have call predecessors, (33), 10 states have return successors, (33), 10 states have call predecessors, (33), 8 states have call successors, (33) [2023-12-16 17:19:44,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3944 states and 6231 transitions. [2023-12-16 17:19:44,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-16 17:19:44,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:44,824 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:44,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:45,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:45,033 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:45,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:45,033 INFO L85 PathProgramCache]: Analyzing trace with hash -78092232, now seen corresponding path program 1 times [2023-12-16 17:19:45,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:45,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1710905865] [2023-12-16 17:19:45,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:45,034 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:45,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:45,035 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:45,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 17:19:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:45,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:19:45,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:45,365 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:19:45,365 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:19:45,540 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:19:45,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:45,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1710905865] [2023-12-16 17:19:45,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1710905865] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:19:45,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:19:45,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2023-12-16 17:19:45,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305967486] [2023-12-16 17:19:45,541 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:19:45,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 17:19:45,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:45,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 17:19:45,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:19:45,542 INFO L87 Difference]: Start difference. First operand 3944 states and 6231 transitions. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 states have internal predecessors, (121), 6 states have call successors, (28), 5 states have call predecessors, (28), 7 states have return successors, (27), 7 states have call predecessors, (27), 6 states have call successors, (27) [2023-12-16 17:19:50,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:50,426 INFO L93 Difference]: Finished difference Result 15763 states and 25706 transitions. [2023-12-16 17:19:50,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 17:19:50,426 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 states have internal predecessors, (121), 6 states have call successors, (28), 5 states have call predecessors, (28), 7 states have return successors, (27), 7 states have call predecessors, (27), 6 states have call successors, (27) Word has length 135 [2023-12-16 17:19:50,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:50,473 INFO L225 Difference]: With dead ends: 15763 [2023-12-16 17:19:50,473 INFO L226 Difference]: Without dead ends: 11841 [2023-12-16 17:19:50,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2023-12-16 17:19:50,492 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 4075 mSDsluCounter, 1744 mSDsCounter, 0 mSdLazyCounter, 6001 mSolverCounterSat, 1264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4174 SdHoareTripleChecker+Valid, 2209 SdHoareTripleChecker+Invalid, 7265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1264 IncrementalHoareTripleChecker+Valid, 6001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:50,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4174 Valid, 2209 Invalid, 7265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1264 Valid, 6001 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-16 17:19:50,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11841 states. [2023-12-16 17:19:51,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11841 to 10537. [2023-12-16 17:19:51,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10537 states, 7795 states have (on average 1.5200769724182168) internal successors, (11849), 8029 states have internal predecessors, (11849), 1963 states have call successors, (1963), 669 states have call predecessors, (1963), 778 states have return successors, (2803), 1988 states have call predecessors, (2803), 1933 states have call successors, (2803) [2023-12-16 17:19:51,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10537 states to 10537 states and 16615 transitions. [2023-12-16 17:19:51,151 INFO L78 Accepts]: Start accepts. Automaton has 10537 states and 16615 transitions. Word has length 135 [2023-12-16 17:19:51,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:51,151 INFO L495 AbstractCegarLoop]: Abstraction has 10537 states and 16615 transitions. [2023-12-16 17:19:51,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 states have internal predecessors, (121), 6 states have call successors, (28), 5 states have call predecessors, (28), 7 states have return successors, (27), 7 states have call predecessors, (27), 6 states have call successors, (27) [2023-12-16 17:19:51,151 INFO L276 IsEmpty]: Start isEmpty. Operand 10537 states and 16615 transitions. [2023-12-16 17:19:51,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 17:19:51,154 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:51,154 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:51,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-12-16 17:19:51,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:51,362 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:51,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:51,362 INFO L85 PathProgramCache]: Analyzing trace with hash -863728024, now seen corresponding path program 1 times [2023-12-16 17:19:51,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:51,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376719273] [2023-12-16 17:19:51,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:51,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:51,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:51,392 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:51,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-16 17:19:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:51,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:19:51,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:51,754 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:19:51,754 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:51,754 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:51,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376719273] [2023-12-16 17:19:51,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376719273] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:51,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:51,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:19:51,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779505348] [2023-12-16 17:19:51,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:51,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:19:51,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:51,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:19:51,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:19:51,756 INFO L87 Difference]: Start difference. First operand 10537 states and 16615 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 6 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-12-16 17:19:56,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:56,502 INFO L93 Difference]: Finished difference Result 28622 states and 47022 transitions. [2023-12-16 17:19:56,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 17:19:56,503 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 6 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 137 [2023-12-16 17:19:56,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:56,584 INFO L225 Difference]: With dead ends: 28622 [2023-12-16 17:19:56,584 INFO L226 Difference]: Without dead ends: 18101 [2023-12-16 17:19:56,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:19:56,672 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 2485 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 5488 mSolverCounterSat, 582 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2595 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 6070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 582 IncrementalHoareTripleChecker+Valid, 5488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:56,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2595 Valid, 1624 Invalid, 6070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [582 Valid, 5488 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-16 17:19:56,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18101 states. [2023-12-16 17:19:57,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18101 to 17303. [2023-12-16 17:19:57,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17303 states, 12449 states have (on average 1.5075106434251748) internal successors, (18767), 12960 states have internal predecessors, (18767), 3600 states have call successors, (3600), 987 states have call predecessors, (3600), 1253 states have return successors, (5677), 3730 states have call predecessors, (5677), 3555 states have call successors, (5677) [2023-12-16 17:19:57,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17303 states to 17303 states and 28044 transitions. [2023-12-16 17:19:57,880 INFO L78 Accepts]: Start accepts. Automaton has 17303 states and 28044 transitions. Word has length 137 [2023-12-16 17:19:57,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:57,881 INFO L495 AbstractCegarLoop]: Abstraction has 17303 states and 28044 transitions. [2023-12-16 17:19:57,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 6 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-12-16 17:19:57,881 INFO L276 IsEmpty]: Start isEmpty. Operand 17303 states and 28044 transitions. [2023-12-16 17:19:57,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 17:19:57,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:57,888 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:19:57,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:58,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:58,096 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:58,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:58,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1760725703, now seen corresponding path program 1 times [2023-12-16 17:19:58,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:58,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841893359] [2023-12-16 17:19:58,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:58,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:58,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:58,099 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:58,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-16 17:19:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:58,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 17:19:58,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:58,498 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:19:58,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:58,499 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:58,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1841893359] [2023-12-16 17:19:58,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1841893359] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:58,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:58,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 17:19:58,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106923104] [2023-12-16 17:19:58,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:58,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 17:19:58,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:58,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 17:19:58,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:19:58,501 INFO L87 Difference]: Start difference. First operand 17303 states and 28044 transitions. Second operand has 11 states, 10 states have (on average 9.2) internal successors, (92), 9 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 8 states have return successors, (18), 8 states have call predecessors, (18), 6 states have call successors, (18) [2023-12-16 17:20:04,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:04,021 INFO L93 Difference]: Finished difference Result 31304 states and 51091 transitions. [2023-12-16 17:20:04,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 17:20:04,022 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.2) internal successors, (92), 9 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 8 states have return successors, (18), 8 states have call predecessors, (18), 6 states have call successors, (18) Word has length 137 [2023-12-16 17:20:04,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:04,194 INFO L225 Difference]: With dead ends: 31304 [2023-12-16 17:20:04,194 INFO L226 Difference]: Without dead ends: 17689 [2023-12-16 17:20:04,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2023-12-16 17:20:04,239 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 2600 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 7358 mSolverCounterSat, 676 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2712 SdHoareTripleChecker+Valid, 3583 SdHoareTripleChecker+Invalid, 8034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 676 IncrementalHoareTripleChecker+Valid, 7358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:04,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2712 Valid, 3583 Invalid, 8034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [676 Valid, 7358 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-16 17:20:04,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17689 states. [2023-12-16 17:20:05,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17689 to 17309. [2023-12-16 17:20:05,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17309 states, 12461 states have (on average 1.505577401492657) internal successors, (18761), 12972 states have internal predecessors, (18761), 3588 states have call successors, (3588), 981 states have call predecessors, (3588), 1259 states have return successors, (5686), 3730 states have call predecessors, (5686), 3543 states have call successors, (5686) [2023-12-16 17:20:05,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17309 states to 17309 states and 28035 transitions. [2023-12-16 17:20:05,445 INFO L78 Accepts]: Start accepts. Automaton has 17309 states and 28035 transitions. Word has length 137 [2023-12-16 17:20:05,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:05,445 INFO L495 AbstractCegarLoop]: Abstraction has 17309 states and 28035 transitions. [2023-12-16 17:20:05,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.2) internal successors, (92), 9 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 8 states have return successors, (18), 8 states have call predecessors, (18), 6 states have call successors, (18) [2023-12-16 17:20:05,446 INFO L276 IsEmpty]: Start isEmpty. Operand 17309 states and 28035 transitions. [2023-12-16 17:20:05,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 17:20:05,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:05,448 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:20:05,457 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 (27)] Forceful destruction successful, exit code 0 [2023-12-16 17:20:05,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:20:05,655 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:05,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:05,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1620420278, now seen corresponding path program 1 times [2023-12-16 17:20:05,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:05,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501009538] [2023-12-16 17:20:05,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:05,656 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:20:05,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:05,657 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:20:05,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-16 17:20:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:05,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 17:20:05,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:05,999 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-16 17:20:05,999 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:05,999 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:05,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501009538] [2023-12-16 17:20:05,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1501009538] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:05,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:06,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:20:06,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200382730] [2023-12-16 17:20:06,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:06,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:20:06,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:06,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:20:06,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:20:06,001 INFO L87 Difference]: Start difference. First operand 17309 states and 28035 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 6 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-12-16 17:20:12,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:12,056 INFO L93 Difference]: Finished difference Result 51264 states and 85708 transitions. [2023-12-16 17:20:12,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 17:20:12,057 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 6 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 136 [2023-12-16 17:20:12,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:12,253 INFO L225 Difference]: With dead ends: 51264 [2023-12-16 17:20:12,253 INFO L226 Difference]: Without dead ends: 37643 [2023-12-16 17:20:12,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2023-12-16 17:20:12,336 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 2784 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 4247 mSolverCounterSat, 598 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2871 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 4845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 598 IncrementalHoareTripleChecker+Valid, 4247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:12,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2871 Valid, 1960 Invalid, 4845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [598 Valid, 4247 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-16 17:20:12,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37643 states. [2023-12-16 17:20:14,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37643 to 33742. [2023-12-16 17:20:14,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33742 states, 24352 states have (on average 1.4948258869908015) internal successors, (36402), 25311 states have internal predecessors, (36402), 6801 states have call successors, (6801), 1869 states have call predecessors, (6801), 2588 states have return successors, (11802), 7182 states have call predecessors, (11802), 6720 states have call successors, (11802) [2023-12-16 17:20:14,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33742 states to 33742 states and 55005 transitions. [2023-12-16 17:20:14,949 INFO L78 Accepts]: Start accepts. Automaton has 33742 states and 55005 transitions. Word has length 136 [2023-12-16 17:20:14,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:14,950 INFO L495 AbstractCegarLoop]: Abstraction has 33742 states and 55005 transitions. [2023-12-16 17:20:14,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 6 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-12-16 17:20:14,950 INFO L276 IsEmpty]: Start isEmpty. Operand 33742 states and 55005 transitions. [2023-12-16 17:20:14,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-16 17:20:14,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:14,953 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:20:14,968 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 (28)] Forceful destruction successful, exit code 0 [2023-12-16 17:20:15,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:20:15,160 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:15,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:15,160 INFO L85 PathProgramCache]: Analyzing trace with hash 804811423, now seen corresponding path program 1 times [2023-12-16 17:20:15,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:15,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396940866] [2023-12-16 17:20:15,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:15,161 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:20:15,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:15,162 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:20:15,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-16 17:20:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:15,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 780 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:20:15,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:15,552 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-16 17:20:15,553 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:15,553 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:15,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396940866] [2023-12-16 17:20:15,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396940866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:15,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:15,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 17:20:15,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661133379] [2023-12-16 17:20:15,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:15,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:20:15,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:15,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:20:15,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:20:15,554 INFO L87 Difference]: Start difference. First operand 33742 states and 55005 transitions. Second operand has 9 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 5 states have call successors, (18), 4 states have call predecessors, (18), 6 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) Received shutdown request... [2023-12-16 17:20:16,176 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:20:16,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:20:16,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:20:16,179 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 324 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:16,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 217 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 17:20:16,180 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:20:16,190 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 [2023-12-16 17:20:16,221 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:20:16,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:20:16,391 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (33742states) and FLOYD_HOARE automaton (currently 4 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (199 states constructed, input type IntersectNwa). [2023-12-16 17:20:16,394 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:20:16,395 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:20:16,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:20:16 BoogieIcfgContainer [2023-12-16 17:20:16,396 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:20:16,397 INFO L158 Benchmark]: Toolchain (without parser) took 63202.27ms. Allocated memory was 187.7MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 140.7MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 740.6MB. Max. memory is 8.0GB. [2023-12-16 17:20:16,397 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 187.7MB. Free memory is still 145.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:20:16,397 INFO L158 Benchmark]: CACSL2BoogieTranslator took 688.47ms. Allocated memory is still 187.7MB. Free memory was 140.7MB in the beginning and 143.1MB in the end (delta: -2.4MB). Peak memory consumption was 49.9MB. Max. memory is 8.0GB. [2023-12-16 17:20:16,397 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.57ms. Allocated memory is still 187.7MB. Free memory was 143.1MB in the beginning and 137.8MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 17:20:16,397 INFO L158 Benchmark]: Boogie Preprocessor took 114.57ms. Allocated memory is still 187.7MB. Free memory was 137.8MB in the beginning and 130.0MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 17:20:16,397 INFO L158 Benchmark]: RCFGBuilder took 1159.64ms. Allocated memory was 187.7MB in the beginning and 247.5MB in the end (delta: 59.8MB). Free memory was 130.0MB in the beginning and 167.9MB in the end (delta: -37.9MB). Peak memory consumption was 80.7MB. Max. memory is 8.0GB. [2023-12-16 17:20:16,397 INFO L158 Benchmark]: TraceAbstraction took 61146.84ms. Allocated memory was 247.5MB in the beginning and 2.3GB in the end (delta: 2.0GB). Free memory was 167.3MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 706.5MB. Max. memory is 8.0GB. [2023-12-16 17:20:16,398 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 187.7MB. Free memory is still 145.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 688.47ms. Allocated memory is still 187.7MB. Free memory was 140.7MB in the beginning and 143.1MB in the end (delta: -2.4MB). Peak memory consumption was 49.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 85.57ms. Allocated memory is still 187.7MB. Free memory was 143.1MB in the beginning and 137.8MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 114.57ms. Allocated memory is still 187.7MB. Free memory was 137.8MB in the beginning and 130.0MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1159.64ms. Allocated memory was 187.7MB in the beginning and 247.5MB in the end (delta: 59.8MB). Free memory was 130.0MB in the beginning and 167.9MB in the end (delta: -37.9MB). Peak memory consumption was 80.7MB. Max. memory is 8.0GB. * TraceAbstraction took 61146.84ms. Allocated memory was 247.5MB in the beginning and 2.3GB in the end (delta: 2.0GB). Free memory was 167.3MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 706.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] - GenericResultAtLocation [Line: 414]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [414] - GenericResultAtLocation [Line: 517]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [517] - GenericResultAtLocation [Line: 558]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [558] - GenericResultAtLocation [Line: 911]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [911] - GenericResultAtLocation [Line: 946]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [946] - GenericResultAtLocation [Line: 960]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [960] - GenericResultAtLocation [Line: 1627]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1627] - GenericResultAtLocation [Line: 3197]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3197] - GenericResultAtLocation [Line: 3315]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3315] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 3320]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 3320). Cancelled while NwaCegarLoop was constructing difference of abstraction (33742states) and FLOYD_HOARE automaton (currently 4 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (199 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 26 procedures, 523 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 61.1s, OverallIterations: 28, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 39.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24930 SdHoareTripleChecker+Valid, 30.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24293 mSDsluCounter, 78432 SdHoareTripleChecker+Invalid, 25.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57844 mSDsCounter, 5627 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44720 IncrementalHoareTripleChecker+Invalid, 50347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5627 mSolverCounterUnsat, 20588 mSDtfsCounter, 44720 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3016 GetRequests, 2799 SyntacticMatches, 0 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33742occurred in iteration=27, InterpolantAutomatonStates: 209, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.6s AutomataMinimizationTime, 27 MinimizatonAttempts, 6788 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 2539 NumberOfCodeBlocks, 2539 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2904 ConstructedInterpolants, 0 QuantifiedInterpolants, 6005 SizeOfPredicates, 59 NumberOfNonLiveVariables, 18014 ConjunctsInSsa, 181 ConjunctsInUnsatCore, 31 InterpolantComputations, 25 PerfectInterpolantSequences, 728/758 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown