/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/minepump_spec3_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:41:05,402 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:41:05,469 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 17:41:05,471 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:41:05,471 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:41:05,493 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:41:05,493 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:41:05,494 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:41:05,494 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:41:05,497 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:41:05,497 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:41:05,498 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:41:05,498 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:41:05,499 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:41:05,499 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:41:05,499 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:41:05,500 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:41:05,500 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:41:05,500 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:41:05,500 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:41:05,500 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:41:05,500 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:41:05,501 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:41:05,501 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:41:05,501 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:41:05,501 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:41:05,501 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:41:05,501 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:41:05,501 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:41:05,502 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:41:05,502 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:41:05,502 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:41:05,503 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:41:05,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:41:05,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:41:05,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:41:05,503 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:41:05,503 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:41:05,503 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:41:05,503 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:41:05,503 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:41:05,504 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:41:05,504 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:41:05,504 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:41:05,504 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:41:05,504 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:41:05,504 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:41:05,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:41:05,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:41:05,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:41:05,698 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:41:05,699 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:41:05,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product62.cil.c [2023-12-16 17:41:06,862 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:41:07,104 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:41:07,105 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product62.cil.c [2023-12-16 17:41:07,121 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c0a6ab70/b0d78c695fd040e7a0e94823be97778c/FLAGd829ef92a [2023-12-16 17:41:07,233 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c0a6ab70/b0d78c695fd040e7a0e94823be97778c [2023-12-16 17:41:07,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:41:07,236 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:41:07,236 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:41:07,236 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:41:07,240 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:41:07,240 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,241 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544067e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07, skipping insertion in model container [2023-12-16 17:41:07,241 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,278 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:41:07,376 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/minepump_spec3_product62.cil.c[1605,1618] [2023-12-16 17:41:07,449 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:41:07,459 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:41:07,467 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:41:07,471 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/minepump_spec3_product62.cil.c[1605,1618] [2023-12-16 17:41:07,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:41:07,522 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:41:07,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-12-16 17:41:07,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [58] [2023-12-16 17:41:07,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [95] [2023-12-16 17:41:07,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [461] [2023-12-16 17:41:07,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [570] [2023-12-16 17:41:07,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [608] [2023-12-16 17:41:07,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [861] [2023-12-16 17:41:07,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [929] [2023-12-16 17:41:07,535 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/minepump_spec3_product62.cil.c[1605,1618] [2023-12-16 17:41:07,600 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:41:07,621 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:41:07,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07 WrapperNode [2023-12-16 17:41:07,623 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:41:07,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:41:07,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:41:07,626 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:41:07,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,683 INFO L138 Inliner]: procedures = 60, calls = 106, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 216 [2023-12-16 17:41:07,683 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:41:07,684 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:41:07,684 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:41:07,684 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:41:07,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,700 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,715 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 17:41:07,715 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,715 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,731 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,734 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,735 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,736 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,738 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:41:07,739 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:41:07,739 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:41:07,739 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:41:07,739 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (1/1) ... [2023-12-16 17:41:07,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:41:07,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:41:07,790 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 17:41:07,825 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 17:41:07,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:41:07,841 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-16 17:41:07,841 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-16 17:41:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 17:41:07,842 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 17:41:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 17:41:07,842 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 17:41:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-16 17:41:07,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-16 17:41:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-16 17:41:07,842 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-16 17:41:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-16 17:41:07,843 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-16 17:41:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:41:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-12-16 17:41:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-12-16 17:41:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-12-16 17:41:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-12-16 17:41:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-16 17:41:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-16 17:41:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-16 17:41:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-16 17:41:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:41:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:41:07,927 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:41:07,929 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:41:08,120 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:41:08,219 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:41:08,219 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 17:41:08,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:41:08 BoogieIcfgContainer [2023-12-16 17:41:08,220 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:41:08,222 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:41:08,222 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:41:08,224 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:41:08,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:41:07" (1/3) ... [2023-12-16 17:41:08,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e2f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:41:08, skipping insertion in model container [2023-12-16 17:41:08,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:41:07" (2/3) ... [2023-12-16 17:41:08,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e2f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:41:08, skipping insertion in model container [2023-12-16 17:41:08,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:41:08" (3/3) ... [2023-12-16 17:41:08,226 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product62.cil.c [2023-12-16 17:41:08,237 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:41:08,238 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:41:08,286 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:41:08,293 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;@7d17757d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:41:08,293 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:41:08,298 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 69 states have internal predecessors, (89), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 17:41:08,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-16 17:41:08,315 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:08,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:08,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:08,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:08,320 INFO L85 PathProgramCache]: Analyzing trace with hash -988620308, now seen corresponding path program 1 times [2023-12-16 17:41:08,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:08,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327903717] [2023-12-16 17:41:08,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:08,329 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 17:41:08,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:08,331 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 17:41:08,352 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 17:41:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:08,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:41:08,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:08,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:41:08,415 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:08,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:08,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327903717] [2023-12-16 17:41:08,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327903717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:08,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:08,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:41:08,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959942435] [2023-12-16 17:41:08,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:08,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:41:08,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:08,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:41:08,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:41:08,450 INFO L87 Difference]: Start difference. First operand has 89 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 69 states have internal predecessors, (89), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:41:08,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:08,521 INFO L93 Difference]: Finished difference Result 176 states and 251 transitions. [2023-12-16 17:41:08,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:41:08,524 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-12-16 17:41:08,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:08,530 INFO L225 Difference]: With dead ends: 176 [2023-12-16 17:41:08,530 INFO L226 Difference]: Without dead ends: 84 [2023-12-16 17:41:08,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:41:08,534 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:08,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:08,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-16 17:41:08,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-12-16 17:41:08,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 65 states have internal predecessors, (79), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 17:41:08,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 114 transitions. [2023-12-16 17:41:08,577 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 114 transitions. Word has length 17 [2023-12-16 17:41:08,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:08,577 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 114 transitions. [2023-12-16 17:41:08,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:41:08,577 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 114 transitions. [2023-12-16 17:41:08,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-16 17:41:08,579 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:08,579 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:08,590 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 17:41:08,793 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 17:41:08,794 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:08,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:08,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1602919767, now seen corresponding path program 1 times [2023-12-16 17:41:08,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:08,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502448252] [2023-12-16 17:41:08,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:08,796 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 17:41:08,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:08,797 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 17:41:08,799 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 17:41:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:08,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:41:08,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:08,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:41:08,873 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:08,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:08,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502448252] [2023-12-16 17:41:08,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502448252] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:08,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:08,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:41:08,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26361726] [2023-12-16 17:41:08,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:08,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:41:08,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:08,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:41:08,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:41:08,875 INFO L87 Difference]: Start difference. First operand 84 states and 114 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:41:08,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:08,932 INFO L93 Difference]: Finished difference Result 141 states and 191 transitions. [2023-12-16 17:41:08,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:41:08,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-12-16 17:41:08,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:08,933 INFO L225 Difference]: With dead ends: 141 [2023-12-16 17:41:08,933 INFO L226 Difference]: Without dead ends: 76 [2023-12-16 17:41:08,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 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 17:41:08,935 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 11 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:08,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 165 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:08,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-16 17:41:08,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-16 17:41:08,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 60 states have internal predecessors, (73), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 17:41:08,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 103 transitions. [2023-12-16 17:41:08,942 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 103 transitions. Word has length 18 [2023-12-16 17:41:08,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:08,942 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 103 transitions. [2023-12-16 17:41:08,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:41:08,942 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 103 transitions. [2023-12-16 17:41:08,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-16 17:41:08,943 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:08,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:08,949 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 (3)] Ended with exit code 0 [2023-12-16 17:41:09,146 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 17:41:09,148 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:09,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:09,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1652279240, now seen corresponding path program 1 times [2023-12-16 17:41:09,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:09,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [76413691] [2023-12-16 17:41:09,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:09,149 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 17:41:09,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:09,152 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 17:41:09,153 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 17:41:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:09,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:41:09,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:09,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:41:09,194 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:09,194 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:09,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [76413691] [2023-12-16 17:41:09,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [76413691] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:09,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:09,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:41:09,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610079912] [2023-12-16 17:41:09,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:09,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:41:09,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:09,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:41:09,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:41:09,195 INFO L87 Difference]: Start difference. First operand 76 states and 103 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:41:09,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:09,221 INFO L93 Difference]: Finished difference Result 150 states and 205 transitions. [2023-12-16 17:41:09,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:41:09,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-12-16 17:41:09,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:09,222 INFO L225 Difference]: With dead ends: 150 [2023-12-16 17:41:09,222 INFO L226 Difference]: Without dead ends: 76 [2023-12-16 17:41:09,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 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 17:41:09,224 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 98 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:09,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 87 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:09,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-16 17:41:09,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-16 17:41:09,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.411764705882353) internal successors, (72), 60 states have internal predecessors, (72), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 17:41:09,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 102 transitions. [2023-12-16 17:41:09,232 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 102 transitions. Word has length 21 [2023-12-16 17:41:09,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:09,232 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 102 transitions. [2023-12-16 17:41:09,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:41:09,233 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 102 transitions. [2023-12-16 17:41:09,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-16 17:41:09,233 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:09,234 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] [2023-12-16 17:41:09,238 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 17:41:09,436 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 17:41:09,436 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:09,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:09,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1472092730, now seen corresponding path program 1 times [2023-12-16 17:41:09,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:09,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052214939] [2023-12-16 17:41:09,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:09,437 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 17:41:09,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:09,438 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 17:41:09,442 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 17:41:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:09,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:41:09,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:09,527 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 17:41:09,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:09,527 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:09,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052214939] [2023-12-16 17:41:09,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052214939] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:09,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:09,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:41:09,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803194865] [2023-12-16 17:41:09,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:09,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:41:09,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:09,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:41:09,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:41:09,529 INFO L87 Difference]: Start difference. First operand 76 states and 102 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:41:09,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:09,576 INFO L93 Difference]: Finished difference Result 198 states and 270 transitions. [2023-12-16 17:41:09,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:41:09,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 35 [2023-12-16 17:41:09,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:09,578 INFO L225 Difference]: With dead ends: 198 [2023-12-16 17:41:09,578 INFO L226 Difference]: Without dead ends: 124 [2023-12-16 17:41:09,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 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 17:41:09,579 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 66 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:09,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 157 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:09,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-12-16 17:41:09,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2023-12-16 17:41:09,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 84 states have (on average 1.3571428571428572) internal successors, (114), 93 states have internal predecessors, (114), 20 states have call successors, (20), 17 states have call predecessors, (20), 17 states have return successors, (26), 18 states have call predecessors, (26), 20 states have call successors, (26) [2023-12-16 17:41:09,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 160 transitions. [2023-12-16 17:41:09,602 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 160 transitions. Word has length 35 [2023-12-16 17:41:09,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:09,602 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 160 transitions. [2023-12-16 17:41:09,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:41:09,602 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 160 transitions. [2023-12-16 17:41:09,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-16 17:41:09,603 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:09,603 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:09,606 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 (5)] Ended with exit code 0 [2023-12-16 17:41:09,805 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 17:41:09,806 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:09,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:09,806 INFO L85 PathProgramCache]: Analyzing trace with hash 365864647, now seen corresponding path program 1 times [2023-12-16 17:41:09,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:09,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1766680100] [2023-12-16 17:41:09,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:09,807 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:41:09,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:09,809 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 17:41:09,814 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 17:41:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:09,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:41:09,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:09,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:41:09,955 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:09,956 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:09,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1766680100] [2023-12-16 17:41:09,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1766680100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:09,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:09,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:41:09,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546300140] [2023-12-16 17:41:09,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:09,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:41:09,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:09,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:41:09,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:41:09,958 INFO L87 Difference]: Start difference. First operand 122 states and 160 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:41:10,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:10,037 INFO L93 Difference]: Finished difference Result 330 states and 445 transitions. [2023-12-16 17:41:10,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:41:10,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 41 [2023-12-16 17:41:10,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:10,040 INFO L225 Difference]: With dead ends: 330 [2023-12-16 17:41:10,040 INFO L226 Difference]: Without dead ends: 210 [2023-12-16 17:41:10,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 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 17:41:10,042 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 30 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:10,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 250 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:10,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-12-16 17:41:10,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 208. [2023-12-16 17:41:10,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 145 states have (on average 1.3172413793103448) internal successors, (191), 157 states have internal predecessors, (191), 33 states have call successors, (33), 29 states have call predecessors, (33), 29 states have return successors, (45), 31 states have call predecessors, (45), 33 states have call successors, (45) [2023-12-16 17:41:10,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 269 transitions. [2023-12-16 17:41:10,063 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 269 transitions. Word has length 41 [2023-12-16 17:41:10,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:10,064 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 269 transitions. [2023-12-16 17:41:10,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:41:10,064 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 269 transitions. [2023-12-16 17:41:10,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-16 17:41:10,065 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:10,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:10,071 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 17:41:10,276 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 17:41:10,276 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:10,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:10,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1205656673, now seen corresponding path program 1 times [2023-12-16 17:41:10,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:10,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942931676] [2023-12-16 17:41:10,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:10,278 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:41:10,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:10,279 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 17:41:10,282 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 17:41:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:10,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:41:10,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:10,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:41:10,377 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:10,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:10,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942931676] [2023-12-16 17:41:10,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942931676] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:10,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:10,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:41:10,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535113229] [2023-12-16 17:41:10,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:10,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:41:10,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:10,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:41:10,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:41:10,379 INFO L87 Difference]: Start difference. First operand 208 states and 269 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 17:41:10,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:10,733 INFO L93 Difference]: Finished difference Result 596 states and 811 transitions. [2023-12-16 17:41:10,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:41:10,733 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 45 [2023-12-16 17:41:10,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:10,736 INFO L225 Difference]: With dead ends: 596 [2023-12-16 17:41:10,736 INFO L226 Difference]: Without dead ends: 476 [2023-12-16 17:41:10,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:41:10,738 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 263 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:10,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 290 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:41:10,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2023-12-16 17:41:10,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 459. [2023-12-16 17:41:10,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 321 states have (on average 1.3302180685358256) internal successors, (427), 350 states have internal predecessors, (427), 73 states have call successors, (73), 56 states have call predecessors, (73), 64 states have return successors, (104), 71 states have call predecessors, (104), 73 states have call successors, (104) [2023-12-16 17:41:10,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 604 transitions. [2023-12-16 17:41:10,795 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 604 transitions. Word has length 45 [2023-12-16 17:41:10,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:10,795 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 604 transitions. [2023-12-16 17:41:10,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 17:41:10,796 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 604 transitions. [2023-12-16 17:41:10,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-16 17:41:10,797 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:10,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:10,820 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 17:41:10,999 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 17:41:11,000 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:11,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:11,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1424511391, now seen corresponding path program 1 times [2023-12-16 17:41:11,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:11,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571137122] [2023-12-16 17:41:11,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:11,001 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 17:41:11,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:11,002 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 17:41:11,021 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 17:41:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:11,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:41:11,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:11,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:41:11,084 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:11,084 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:11,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571137122] [2023-12-16 17:41:11,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571137122] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:11,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:11,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:41:11,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047430890] [2023-12-16 17:41:11,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:11,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:41:11,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:11,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:41:11,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:41:11,086 INFO L87 Difference]: Start difference. First operand 459 states and 604 transitions. 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:41:11,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:11,161 INFO L93 Difference]: Finished difference Result 852 states and 1158 transitions. [2023-12-16 17:41:11,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:41:11,162 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2023-12-16 17:41:11,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:11,165 INFO L225 Difference]: With dead ends: 852 [2023-12-16 17:41:11,165 INFO L226 Difference]: Without dead ends: 476 [2023-12-16 17:41:11,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 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 17:41:11,166 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 10 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:11,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 284 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:11,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2023-12-16 17:41:11,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 461. [2023-12-16 17:41:11,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 323 states have (on average 1.325077399380805) internal successors, (428), 352 states have internal predecessors, (428), 73 states have call successors, (73), 56 states have call predecessors, (73), 64 states have return successors, (104), 71 states have call predecessors, (104), 73 states have call successors, (104) [2023-12-16 17:41:11,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 605 transitions. [2023-12-16 17:41:11,205 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 605 transitions. Word has length 45 [2023-12-16 17:41:11,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:11,205 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 605 transitions. [2023-12-16 17:41:11,205 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:41:11,205 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 605 transitions. [2023-12-16 17:41:11,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-16 17:41:11,207 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:11,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:11,212 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 17:41:11,410 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 17:41:11,410 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:11,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:11,411 INFO L85 PathProgramCache]: Analyzing trace with hash 606862941, now seen corresponding path program 1 times [2023-12-16 17:41:11,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:11,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181002419] [2023-12-16 17:41:11,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:11,412 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 17:41:11,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:11,413 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 17:41:11,439 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 17:41:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:11,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:41:11,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:11,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:41:11,474 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:11,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:11,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181002419] [2023-12-16 17:41:11,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181002419] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:11,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:11,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:41:11,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141364045] [2023-12-16 17:41:11,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:11,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:41:11,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:11,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:41:11,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:41:11,476 INFO L87 Difference]: Start difference. First operand 461 states and 605 transitions. 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:41:11,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:11,542 INFO L93 Difference]: Finished difference Result 950 states and 1278 transitions. [2023-12-16 17:41:11,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:41:11,542 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2023-12-16 17:41:11,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:11,545 INFO L225 Difference]: With dead ends: 950 [2023-12-16 17:41:11,545 INFO L226 Difference]: Without dead ends: 491 [2023-12-16 17:41:11,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:41:11,547 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 6 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:11,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 269 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:11,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2023-12-16 17:41:11,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 464. [2023-12-16 17:41:11,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 328 states have (on average 1.3170731707317074) internal successors, (432), 356 states have internal predecessors, (432), 72 states have call successors, (72), 55 states have call predecessors, (72), 63 states have return successors, (103), 70 states have call predecessors, (103), 72 states have call successors, (103) [2023-12-16 17:41:11,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 607 transitions. [2023-12-16 17:41:11,579 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 607 transitions. Word has length 45 [2023-12-16 17:41:11,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:11,580 INFO L495 AbstractCegarLoop]: Abstraction has 464 states and 607 transitions. [2023-12-16 17:41:11,580 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:41:11,580 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 607 transitions. [2023-12-16 17:41:11,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 17:41:11,581 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:11,581 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 17:41:11,601 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-16 17:41:11,784 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 17:41:11,784 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:11,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:11,784 INFO L85 PathProgramCache]: Analyzing trace with hash 677390635, now seen corresponding path program 1 times [2023-12-16 17:41:11,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:11,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919067148] [2023-12-16 17:41:11,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:11,785 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 17:41:11,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:11,786 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 17:41:11,790 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 17:41:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:11,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:41:11,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:11,927 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 17:41:11,927 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:11,928 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:11,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919067148] [2023-12-16 17:41:11,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919067148] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:11,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:11,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:41:11,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261638148] [2023-12-16 17:41:11,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:11,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:41:11,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:11,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:41:11,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:41:11,930 INFO L87 Difference]: Start difference. First operand 464 states and 607 transitions. Second operand has 8 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-16 17:41:12,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:12,156 INFO L93 Difference]: Finished difference Result 1364 states and 1830 transitions. [2023-12-16 17:41:12,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:41:12,156 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2023-12-16 17:41:12,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:12,160 INFO L225 Difference]: With dead ends: 1364 [2023-12-16 17:41:12,160 INFO L226 Difference]: Without dead ends: 902 [2023-12-16 17:41:12,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:41:12,162 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 61 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:12,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 453 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:41:12,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2023-12-16 17:41:12,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 900. [2023-12-16 17:41:12,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 635 states have (on average 1.3023622047244094) internal successors, (827), 685 states have internal predecessors, (827), 142 states have call successors, (142), 109 states have call predecessors, (142), 122 states have return successors, (208), 136 states have call predecessors, (208), 142 states have call successors, (208) [2023-12-16 17:41:12,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1177 transitions. [2023-12-16 17:41:12,210 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1177 transitions. Word has length 52 [2023-12-16 17:41:12,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:12,211 INFO L495 AbstractCegarLoop]: Abstraction has 900 states and 1177 transitions. [2023-12-16 17:41:12,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-16 17:41:12,211 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1177 transitions. [2023-12-16 17:41:12,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 17:41:12,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:12,212 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 17:41:12,263 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 17:41:12,413 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 17:41:12,413 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:12,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:12,414 INFO L85 PathProgramCache]: Analyzing trace with hash 742192727, now seen corresponding path program 1 times [2023-12-16 17:41:12,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:12,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378938981] [2023-12-16 17:41:12,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:12,414 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 17:41:12,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:12,415 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 17:41:12,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 17:41:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:12,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:41:12,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:12,483 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 17:41:12,483 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:12,483 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:12,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378938981] [2023-12-16 17:41:12,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [378938981] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:12,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:12,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:41:12,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315479945] [2023-12-16 17:41:12,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:12,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:41:12,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:12,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:41:12,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:41:12,485 INFO L87 Difference]: Start difference. First operand 900 states and 1177 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, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-16 17:41:12,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:12,562 INFO L93 Difference]: Finished difference Result 1804 states and 2386 transitions. [2023-12-16 17:41:12,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:41:12,563 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, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2023-12-16 17:41:12,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:12,566 INFO L225 Difference]: With dead ends: 1804 [2023-12-16 17:41:12,566 INFO L226 Difference]: Without dead ends: 906 [2023-12-16 17:41:12,567 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 17:41:12,568 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 63 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:12,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 297 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:12,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2023-12-16 17:41:12,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 868. [2023-12-16 17:41:12,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 613 states have (on average 1.2463295269168027) internal successors, (764), 659 states have internal predecessors, (764), 134 states have call successors, (134), 105 states have call predecessors, (134), 120 states have return successors, (178), 132 states have call predecessors, (178), 134 states have call successors, (178) [2023-12-16 17:41:12,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1076 transitions. [2023-12-16 17:41:12,606 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1076 transitions. Word has length 52 [2023-12-16 17:41:12,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:12,606 INFO L495 AbstractCegarLoop]: Abstraction has 868 states and 1076 transitions. [2023-12-16 17:41:12,606 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, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-16 17:41:12,606 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1076 transitions. [2023-12-16 17:41:12,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-16 17:41:12,607 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:12,607 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 17:41:12,625 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 (11)] Ended with exit code 0 [2023-12-16 17:41:12,809 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 17:41:12,810 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:12,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:12,810 INFO L85 PathProgramCache]: Analyzing trace with hash -840394353, now seen corresponding path program 1 times [2023-12-16 17:41:12,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:12,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888038167] [2023-12-16 17:41:12,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:12,811 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 17:41:12,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:12,812 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 17:41:12,838 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 17:41:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:12,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:41:12,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:12,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-16 17:41:12,902 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:12,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:12,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888038167] [2023-12-16 17:41:12,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888038167] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:12,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:12,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:41:12,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837056245] [2023-12-16 17:41:12,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:12,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:41:12,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:12,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:41:12,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:41:12,903 INFO L87 Difference]: Start difference. First operand 868 states and 1076 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:41:13,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:13,056 INFO L93 Difference]: Finished difference Result 1712 states and 2129 transitions. [2023-12-16 17:41:13,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:41:13,057 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 56 [2023-12-16 17:41:13,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:13,061 INFO L225 Difference]: With dead ends: 1712 [2023-12-16 17:41:13,061 INFO L226 Difference]: Without dead ends: 846 [2023-12-16 17:41:13,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 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 17:41:13,063 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 56 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:13,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 622 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:41:13,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2023-12-16 17:41:13,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 846. [2023-12-16 17:41:13,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 591 states have (on average 1.1979695431472082) internal successors, (708), 637 states have internal predecessors, (708), 134 states have call successors, (134), 105 states have call predecessors, (134), 120 states have return successors, (171), 132 states have call predecessors, (171), 134 states have call successors, (171) [2023-12-16 17:41:13,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1013 transitions. [2023-12-16 17:41:13,110 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1013 transitions. Word has length 56 [2023-12-16 17:41:13,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:13,110 INFO L495 AbstractCegarLoop]: Abstraction has 846 states and 1013 transitions. [2023-12-16 17:41:13,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:41:13,110 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1013 transitions. [2023-12-16 17:41:13,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-16 17:41:13,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:13,112 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:13,124 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 17:41:13,314 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 17:41:13,315 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:13,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:13,315 INFO L85 PathProgramCache]: Analyzing trace with hash 594779852, now seen corresponding path program 1 times [2023-12-16 17:41:13,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:13,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083382431] [2023-12-16 17:41:13,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:13,316 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 17:41:13,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:13,317 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 17:41:13,318 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 17:41:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:13,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:41:13,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:13,382 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-16 17:41:13,382 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:13,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:13,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083382431] [2023-12-16 17:41:13,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083382431] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:13,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:13,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:41:13,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868726625] [2023-12-16 17:41:13,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:13,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:41:13,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:13,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:41:13,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:41:13,384 INFO L87 Difference]: Start difference. First operand 846 states and 1013 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:41:13,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:13,439 INFO L93 Difference]: Finished difference Result 1696 states and 2057 transitions. [2023-12-16 17:41:13,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:41:13,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2023-12-16 17:41:13,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:13,442 INFO L225 Difference]: With dead ends: 1696 [2023-12-16 17:41:13,442 INFO L226 Difference]: Without dead ends: 852 [2023-12-16 17:41:13,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:41:13,443 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 2 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:13,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 255 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:13,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2023-12-16 17:41:13,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 846. [2023-12-16 17:41:13,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 591 states have (on average 1.1878172588832487) internal successors, (702), 637 states have internal predecessors, (702), 134 states have call successors, (134), 105 states have call predecessors, (134), 120 states have return successors, (171), 132 states have call predecessors, (171), 134 states have call successors, (171) [2023-12-16 17:41:13,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1007 transitions. [2023-12-16 17:41:13,478 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1007 transitions. Word has length 82 [2023-12-16 17:41:13,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:13,479 INFO L495 AbstractCegarLoop]: Abstraction has 846 states and 1007 transitions. [2023-12-16 17:41:13,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:41:13,479 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1007 transitions. [2023-12-16 17:41:13,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-16 17:41:13,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:13,480 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:13,498 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 (13)] Ended with exit code 0 [2023-12-16 17:41:13,682 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 17:41:13,682 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:13,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:13,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1738612786, now seen corresponding path program 1 times [2023-12-16 17:41:13,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:13,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1681431825] [2023-12-16 17:41:13,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:13,683 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 17:41:13,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:13,684 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 17:41:13,687 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 17:41:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:13,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:41:13,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:13,740 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-16 17:41:13,740 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:13,740 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:13,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1681431825] [2023-12-16 17:41:13,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1681431825] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:13,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:13,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:41:13,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684247900] [2023-12-16 17:41:13,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:13,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:41:13,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:13,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:41:13,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:41:13,741 INFO L87 Difference]: Start difference. First operand 846 states and 1007 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:41:13,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:13,818 INFO L93 Difference]: Finished difference Result 1607 states and 1941 transitions. [2023-12-16 17:41:13,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:41:13,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2023-12-16 17:41:13,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:13,821 INFO L225 Difference]: With dead ends: 1607 [2023-12-16 17:41:13,821 INFO L226 Difference]: Without dead ends: 763 [2023-12-16 17:41:13,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 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 17:41:13,823 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 6 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:13,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 251 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:41:13,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2023-12-16 17:41:13,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 761. [2023-12-16 17:41:13,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 532 states have (on average 1.1879699248120301) internal successors, (632), 572 states have internal predecessors, (632), 122 states have call successors, (122), 99 states have call predecessors, (122), 106 states have return successors, (147), 114 states have call predecessors, (147), 122 states have call successors, (147) [2023-12-16 17:41:13,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 901 transitions. [2023-12-16 17:41:13,856 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 901 transitions. Word has length 82 [2023-12-16 17:41:13,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:13,856 INFO L495 AbstractCegarLoop]: Abstraction has 761 states and 901 transitions. [2023-12-16 17:41:13,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:41:13,856 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 901 transitions. [2023-12-16 17:41:13,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 17:41:13,857 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:13,857 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:13,862 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 17:41:14,062 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 17:41:14,062 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:14,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:14,062 INFO L85 PathProgramCache]: Analyzing trace with hash -602847242, now seen corresponding path program 1 times [2023-12-16 17:41:14,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:14,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364101139] [2023-12-16 17:41:14,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:14,063 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 17:41:14,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:14,064 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 17:41:14,065 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 17:41:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:14,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:41:14,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:14,215 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-16 17:41:14,215 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:14,215 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:14,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364101139] [2023-12-16 17:41:14,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364101139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:14,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:14,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:41:14,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938178199] [2023-12-16 17:41:14,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:14,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:41:14,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:14,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:41:14,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:41:14,216 INFO L87 Difference]: Start difference. First operand 761 states and 901 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:41:14,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:14,360 INFO L93 Difference]: Finished difference Result 1520 states and 1813 transitions. [2023-12-16 17:41:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:41:14,360 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 86 [2023-12-16 17:41:14,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:14,363 INFO L225 Difference]: With dead ends: 1520 [2023-12-16 17:41:14,363 INFO L226 Difference]: Without dead ends: 761 [2023-12-16 17:41:14,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:41:14,364 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 57 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:14,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 323 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:41:14,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2023-12-16 17:41:14,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 761. [2023-12-16 17:41:14,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 532 states have (on average 1.1710526315789473) internal successors, (623), 572 states have internal predecessors, (623), 122 states have call successors, (122), 99 states have call predecessors, (122), 106 states have return successors, (147), 114 states have call predecessors, (147), 122 states have call successors, (147) [2023-12-16 17:41:14,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 892 transitions. [2023-12-16 17:41:14,396 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 892 transitions. Word has length 86 [2023-12-16 17:41:14,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:14,396 INFO L495 AbstractCegarLoop]: Abstraction has 761 states and 892 transitions. [2023-12-16 17:41:14,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:41:14,396 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 892 transitions. [2023-12-16 17:41:14,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 17:41:14,397 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:14,397 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:14,410 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 (15)] Forceful destruction successful, exit code 0 [2023-12-16 17:41:14,600 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 17:41:14,600 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:14,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:14,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1420684559, now seen corresponding path program 1 times [2023-12-16 17:41:14,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:14,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090804970] [2023-12-16 17:41:14,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:14,601 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 17:41:14,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:14,602 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 17:41:14,630 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 17:41:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:14,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:41:14,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:14,749 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:41:14,749 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:14,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:14,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1090804970] [2023-12-16 17:41:14,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1090804970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:14,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:14,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:41:14,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327566928] [2023-12-16 17:41:14,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:14,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:41:14,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:14,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:41:14,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:41:14,750 INFO L87 Difference]: Start difference. First operand 761 states and 892 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 5 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-12-16 17:41:15,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:15,207 INFO L93 Difference]: Finished difference Result 1900 states and 2260 transitions. [2023-12-16 17:41:15,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 17:41:15,208 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 5 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 87 [2023-12-16 17:41:15,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:15,211 INFO L225 Difference]: With dead ends: 1900 [2023-12-16 17:41:15,211 INFO L226 Difference]: Without dead ends: 1228 [2023-12-16 17:41:15,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:41:15,214 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 308 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:15,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 261 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:41:15,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2023-12-16 17:41:15,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 1194. [2023-12-16 17:41:15,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1194 states, 825 states have (on average 1.1515151515151516) internal successors, (950), 882 states have internal predecessors, (950), 189 states have call successors, (189), 162 states have call predecessors, (189), 179 states have return successors, (225), 182 states have call predecessors, (225), 189 states have call successors, (225) [2023-12-16 17:41:15,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1364 transitions. [2023-12-16 17:41:15,273 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1364 transitions. Word has length 87 [2023-12-16 17:41:15,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:15,273 INFO L495 AbstractCegarLoop]: Abstraction has 1194 states and 1364 transitions. [2023-12-16 17:41:15,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 5 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-12-16 17:41:15,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1364 transitions. [2023-12-16 17:41:15,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 17:41:15,274 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:15,274 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:15,298 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 (16)] Ended with exit code 0 [2023-12-16 17:41:15,476 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 17:41:15,477 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:15,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:15,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1851292620, now seen corresponding path program 1 times [2023-12-16 17:41:15,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:15,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337840865] [2023-12-16 17:41:15,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:15,477 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 17:41:15,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:15,489 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 17:41:15,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 17:41:15,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:15,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:41:15,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:15,664 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:41:15,665 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:15,665 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:15,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337840865] [2023-12-16 17:41:15,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1337840865] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:15,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:15,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:41:15,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016341984] [2023-12-16 17:41:15,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:15,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:41:15,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:15,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:41:15,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:41:15,666 INFO L87 Difference]: Start difference. First operand 1194 states and 1364 transitions. Second operand has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:41:15,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:15,865 INFO L93 Difference]: Finished difference Result 2300 states and 2633 transitions. [2023-12-16 17:41:15,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:41:15,865 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 88 [2023-12-16 17:41:15,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:15,868 INFO L225 Difference]: With dead ends: 2300 [2023-12-16 17:41:15,869 INFO L226 Difference]: Without dead ends: 1195 [2023-12-16 17:41:15,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:41:15,871 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 36 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:15,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 515 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:41:15,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2023-12-16 17:41:15,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1190. [2023-12-16 17:41:15,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1190 states, 825 states have (on average 1.1466666666666667) internal successors, (946), 878 states have internal predecessors, (946), 185 states have call successors, (185), 162 states have call predecessors, (185), 179 states have return successors, (221), 182 states have call predecessors, (221), 185 states have call successors, (221) [2023-12-16 17:41:15,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1352 transitions. [2023-12-16 17:41:15,924 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1352 transitions. Word has length 88 [2023-12-16 17:41:15,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:15,924 INFO L495 AbstractCegarLoop]: Abstraction has 1190 states and 1352 transitions. [2023-12-16 17:41:15,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:41:15,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1352 transitions. [2023-12-16 17:41:15,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 17:41:15,925 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:15,926 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:15,928 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-16 17:41:16,128 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 17:41:16,128 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:16,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:16,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1157961705, now seen corresponding path program 1 times [2023-12-16 17:41:16,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:16,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [469540279] [2023-12-16 17:41:16,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:16,129 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 17:41:16,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:16,145 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 17:41:16,145 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 17:41:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:16,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:41:16,216 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:16,312 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 25 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 17:41:16,312 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:41:16,545 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-16 17:41:16,546 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:16,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [469540279] [2023-12-16 17:41:16,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [469540279] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:41:16,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:41:16,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2023-12-16 17:41:16,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758063851] [2023-12-16 17:41:16,546 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:41:16,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 17:41:16,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:16,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 17:41:16,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:41:16,547 INFO L87 Difference]: Start difference. First operand 1190 states and 1352 transitions. Second operand has 14 states, 14 states have (on average 7.357142857142857) internal successors, (103), 13 states have internal predecessors, (103), 9 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) [2023-12-16 17:41:17,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:17,154 INFO L93 Difference]: Finished difference Result 2634 states and 3069 transitions. [2023-12-16 17:41:17,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 17:41:17,155 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.357142857142857) internal successors, (103), 13 states have internal predecessors, (103), 9 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) Word has length 96 [2023-12-16 17:41:17,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:17,159 INFO L225 Difference]: With dead ends: 2634 [2023-12-16 17:41:17,159 INFO L226 Difference]: Without dead ends: 1533 [2023-12-16 17:41:17,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2023-12-16 17:41:17,162 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 513 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:17,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 489 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:41:17,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2023-12-16 17:41:17,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1507. [2023-12-16 17:41:17,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1041 states have (on average 1.1344860710854947) internal successors, (1181), 1107 states have internal predecessors, (1181), 233 states have call successors, (233), 211 states have call predecessors, (233), 232 states have return successors, (263), 228 states have call predecessors, (263), 233 states have call successors, (263) [2023-12-16 17:41:17,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1677 transitions. [2023-12-16 17:41:17,236 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1677 transitions. Word has length 96 [2023-12-16 17:41:17,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:17,236 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 1677 transitions. [2023-12-16 17:41:17,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.357142857142857) internal successors, (103), 13 states have internal predecessors, (103), 9 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) [2023-12-16 17:41:17,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1677 transitions. [2023-12-16 17:41:17,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 17:41:17,239 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:17,239 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:17,255 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 (18)] Ended with exit code 0 [2023-12-16 17:41:17,442 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 17:41:17,443 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:17,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:17,443 INFO L85 PathProgramCache]: Analyzing trace with hash -836183001, now seen corresponding path program 1 times [2023-12-16 17:41:17,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:17,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106627850] [2023-12-16 17:41:17,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:17,443 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 17:41:17,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:17,444 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 17:41:17,446 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 17:41:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:17,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:41:17,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:17,605 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:41:17,605 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:41:17,802 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-16 17:41:17,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:17,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106627850] [2023-12-16 17:41:17,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106627850] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:41:17,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:41:17,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2023-12-16 17:41:17,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283342453] [2023-12-16 17:41:17,804 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:41:17,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 17:41:17,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:17,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 17:41:17,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-16 17:41:17,806 INFO L87 Difference]: Start difference. First operand 1507 states and 1677 transitions. Second operand has 13 states, 13 states have (on average 8.153846153846153) internal successors, (106), 12 states have internal predecessors, (106), 7 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-12-16 17:41:18,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:18,571 INFO L93 Difference]: Finished difference Result 3487 states and 3958 transitions. [2023-12-16 17:41:18,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 17:41:18,572 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.153846153846153) internal successors, (106), 12 states have internal predecessors, (106), 7 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 96 [2023-12-16 17:41:18,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:18,577 INFO L225 Difference]: With dead ends: 3487 [2023-12-16 17:41:18,577 INFO L226 Difference]: Without dead ends: 2069 [2023-12-16 17:41:18,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2023-12-16 17:41:18,580 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 642 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:18,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 393 Invalid, 962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:41:18,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2069 states. [2023-12-16 17:41:18,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2069 to 1574. [2023-12-16 17:41:18,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1083 states have (on average 1.126500461680517) internal successors, (1220), 1152 states have internal predecessors, (1220), 243 states have call successors, (243), 222 states have call predecessors, (243), 247 states have return successors, (275), 240 states have call predecessors, (275), 243 states have call successors, (275) [2023-12-16 17:41:18,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 1738 transitions. [2023-12-16 17:41:18,690 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 1738 transitions. Word has length 96 [2023-12-16 17:41:18,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:18,690 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 1738 transitions. [2023-12-16 17:41:18,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.153846153846153) internal successors, (106), 12 states have internal predecessors, (106), 7 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-12-16 17:41:18,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 1738 transitions. [2023-12-16 17:41:18,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-12-16 17:41:18,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:18,694 INFO L195 NwaCegarLoop]: trace histogram [13, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:18,697 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 17:41:18,897 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 17:41:18,897 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:18,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:18,898 INFO L85 PathProgramCache]: Analyzing trace with hash 110795496, now seen corresponding path program 1 times [2023-12-16 17:41:18,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:18,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264100381] [2023-12-16 17:41:18,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:18,899 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 17:41:18,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:18,899 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 17:41:18,926 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 17:41:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:19,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:41:19,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:19,092 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2023-12-16 17:41:19,092 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:19,092 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:19,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264100381] [2023-12-16 17:41:19,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [264100381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:19,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:19,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:41:19,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103369981] [2023-12-16 17:41:19,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:19,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:41:19,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:19,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:41:19,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:41:19,094 INFO L87 Difference]: Start difference. First operand 1574 states and 1738 transitions. Second operand has 8 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-16 17:41:19,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:19,323 INFO L93 Difference]: Finished difference Result 2996 states and 3322 transitions. [2023-12-16 17:41:19,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:41:19,336 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) Word has length 321 [2023-12-16 17:41:19,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:19,341 INFO L225 Difference]: With dead ends: 2996 [2023-12-16 17:41:19,341 INFO L226 Difference]: Without dead ends: 1511 [2023-12-16 17:41:19,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:41:19,343 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 63 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:19,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 568 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:41:19,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2023-12-16 17:41:19,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1511. [2023-12-16 17:41:19,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1041 states have (on average 1.1258405379442844) internal successors, (1172), 1104 states have internal predecessors, (1172), 237 states have call successors, (237), 216 states have call predecessors, (237), 232 states have return successors, (260), 228 states have call predecessors, (260), 237 states have call successors, (260) [2023-12-16 17:41:19,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 1669 transitions. [2023-12-16 17:41:19,445 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 1669 transitions. Word has length 321 [2023-12-16 17:41:19,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:19,446 INFO L495 AbstractCegarLoop]: Abstraction has 1511 states and 1669 transitions. [2023-12-16 17:41:19,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-16 17:41:19,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 1669 transitions. [2023-12-16 17:41:19,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2023-12-16 17:41:19,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:19,450 INFO L195 NwaCegarLoop]: trace histogram [13, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:19,493 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 (20)] Ended with exit code 0 [2023-12-16 17:41:19,652 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 17:41:19,653 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:19,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:19,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1226883904, now seen corresponding path program 1 times [2023-12-16 17:41:19,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:19,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177227307] [2023-12-16 17:41:19,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:41:19,654 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 17:41:19,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:19,661 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 17:41:19,662 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 17:41:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:41:19,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:41:19,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:19,867 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2023-12-16 17:41:19,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:19,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:19,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177227307] [2023-12-16 17:41:19,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1177227307] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:19,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:19,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:41:19,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587958007] [2023-12-16 17:41:19,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:19,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:41:19,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:19,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:41:19,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:41:19,869 INFO L87 Difference]: Start difference. First operand 1511 states and 1669 transitions. Second operand has 8 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (26), 5 states have call predecessors, (26), 3 states have call successors, (26) [2023-12-16 17:41:20,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:20,045 INFO L93 Difference]: Finished difference Result 2744 states and 3033 transitions. [2023-12-16 17:41:20,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:41:20,046 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (26), 5 states have call predecessors, (26), 3 states have call successors, (26) Word has length 325 [2023-12-16 17:41:20,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:20,049 INFO L225 Difference]: With dead ends: 2744 [2023-12-16 17:41:20,050 INFO L226 Difference]: Without dead ends: 1322 [2023-12-16 17:41:20,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:41:20,052 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 55 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:20,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 764 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:41:20,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2023-12-16 17:41:20,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1321. [2023-12-16 17:41:20,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 919 states have (on average 1.11860718171926) internal successors, (1028), 964 states have internal predecessors, (1028), 202 states have call successors, (202), 191 states have call predecessors, (202), 199 states have return successors, (215), 191 states have call predecessors, (215), 202 states have call successors, (215) [2023-12-16 17:41:20,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1445 transitions. [2023-12-16 17:41:20,161 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1445 transitions. Word has length 325 [2023-12-16 17:41:20,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:20,162 INFO L495 AbstractCegarLoop]: Abstraction has 1321 states and 1445 transitions. [2023-12-16 17:41:20,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (26), 5 states have call predecessors, (26), 3 states have call successors, (26) [2023-12-16 17:41:20,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1445 transitions. [2023-12-16 17:41:20,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2023-12-16 17:41:20,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:41:20,167 INFO L195 NwaCegarLoop]: trace histogram [13, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:20,191 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 17:41:20,371 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 17:41:20,371 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:41:20,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:41:20,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1303965839, now seen corresponding path program 2 times [2023-12-16 17:41:20,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:41:20,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118971855] [2023-12-16 17:41:20,372 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 17:41:20,372 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:41:20,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:41:20,373 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 17:41:20,375 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 17:41:20,526 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 17:41:20,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:41:20,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:41:20,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:41:20,565 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2023-12-16 17:41:20,565 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:41:20,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:41:20,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118971855] [2023-12-16 17:41:20,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2118971855] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:41:20,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:41:20,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:41:20,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371935179] [2023-12-16 17:41:20,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:41:20,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:41:20,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:41:20,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:41:20,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:41:20,567 INFO L87 Difference]: Start difference. First operand 1321 states and 1445 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 17:41:20,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:41:20,655 INFO L93 Difference]: Finished difference Result 1595 states and 1746 transitions. [2023-12-16 17:41:20,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:41:20,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 326 [2023-12-16 17:41:20,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:41:20,656 INFO L225 Difference]: With dead ends: 1595 [2023-12-16 17:41:20,656 INFO L226 Difference]: Without dead ends: 0 [2023-12-16 17:41:20,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:41:20,675 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 2 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:41:20,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 230 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:41:20,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-16 17:41:20,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-16 17:41:20,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:41:20,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-16 17:41:20,677 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 326 [2023-12-16 17:41:20,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:41:20,677 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-16 17:41:20,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 17:41:20,678 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-16 17:41:20,678 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-16 17:41:20,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:41:20,694 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 17:41:20,880 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 17:41:20,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-16 17:41:22,585 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 751 758) no Hoare annotation was computed. [2023-12-16 17:41:22,585 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 751 758) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (.cse3 (not (= ~waterLevel~0 (_ bv1 32))))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 (_ bv1 32))) .cse2 .cse3) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 (_ bv0 32))) .cse2 .cse3))) [2023-12-16 17:41:22,585 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 641 647) no Hoare annotation was computed. [2023-12-16 17:41:22,585 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 641 647) the Hoare annotation is: true [2023-12-16 17:41:22,586 INFO L895 garLoopResultBuilder]: At program point L694(line 694) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse5 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse6 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse3 (not (= ~waterLevel~0 (_ bv1 32)))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse2 .cse4) (or .cse0 .cse6 (not (= |old(~pumpRunning~0)| (_ bv1 32))) .cse3) (or .cse0 .cse5 .cse1 .cse6 .cse4) (or .cse0 .cse1 .cse6 .cse3 .cse4))) [2023-12-16 17:41:22,586 INFO L899 garLoopResultBuilder]: For program point L694-1(lines 675 699) no Hoare annotation was computed. [2023-12-16 17:41:22,586 INFO L899 garLoopResultBuilder]: For program point L843(lines 843 847) no Hoare annotation was computed. [2023-12-16 17:41:22,586 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 675 699) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse5 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse6 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse3 (not (= ~waterLevel~0 (_ bv1 32)))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse2 .cse4) (or (= (_ bv1 32) ~pumpRunning~0) .cse0 .cse6 (not (= |old(~pumpRunning~0)| (_ bv1 32))) .cse3) (or .cse0 .cse5 .cse1 .cse6 .cse4) (or .cse0 .cse1 .cse6 .cse3 .cse4))) [2023-12-16 17:41:22,586 INFO L899 garLoopResultBuilder]: For program point L843-2(lines 843 847) no Hoare annotation was computed. [2023-12-16 17:41:22,586 INFO L895 garLoopResultBuilder]: At program point L689(line 689) the Hoare annotation is: (let ((.cse1 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse4 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse3 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse5 (not (= ~waterLevel~0 (_ bv1 32))))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse4) (or .cse0 .cse4 (not (= |old(~pumpRunning~0)| (_ bv1 32))) .cse5) (or .cse0 .cse2 .cse4 .cse5) (or .cse0 .cse2 .cse3 .cse5))) [2023-12-16 17:41:22,586 INFO L895 garLoopResultBuilder]: At program point L685(line 685) the Hoare annotation is: (let ((.cse1 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse4 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse3 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse5 (not (= ~waterLevel~0 (_ bv1 32))))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (and (= (_ bv1 32) ~pumpRunning~0) (= |processEnvironment__wrappee__methaneQuery_~tmp~5#1| (_ bv1 32))) .cse4 (not (= |old(~pumpRunning~0)| (_ bv1 32))) .cse5) (or .cse0 .cse1 .cse2 .cse4) (or .cse0 .cse2 .cse4 .cse5) (or .cse0 .cse2 .cse3 .cse5))) [2023-12-16 17:41:22,586 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 675 699) no Hoare annotation was computed. [2023-12-16 17:41:22,586 INFO L899 garLoopResultBuilder]: For program point L683(lines 683 691) no Hoare annotation was computed. [2023-12-16 17:41:22,586 INFO L899 garLoopResultBuilder]: For program point L679(lines 679 696) no Hoare annotation was computed. [2023-12-16 17:41:22,586 INFO L899 garLoopResultBuilder]: For program point L498-1(lines 494 505) no Hoare annotation was computed. [2023-12-16 17:41:22,587 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 494 505) the Hoare annotation is: (let ((.cse5 (not (= ~waterLevel~0 (_ bv1 32)))) (.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse6 (not (= |old(~methaneLevelCritical~0)| (_ bv1 32)))) (.cse7 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse3 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse4 (not (= |old(~methaneLevelCritical~0)| (_ bv0 32))))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse5 .cse6 .cse7) (or .cse0 .cse1 .cse2 .cse4 .cse5) (or .cse0 .cse1 .cse3 .cse6 .cse7) (or .cse1 .cse2 .cse3 .cse4 (not (= (_ bv1 32) ~pumpRunning~0))))) [2023-12-16 17:41:22,587 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 494 505) no Hoare annotation was computed. [2023-12-16 17:41:22,587 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 931 960) no Hoare annotation was computed. [2023-12-16 17:41:22,587 INFO L899 garLoopResultBuilder]: For program point L956(lines 931 960) no Hoare annotation was computed. [2023-12-16 17:41:22,587 INFO L899 garLoopResultBuilder]: For program point L952(line 952) no Hoare annotation was computed. [2023-12-16 17:41:22,587 INFO L899 garLoopResultBuilder]: For program point L945(lines 945 949) no Hoare annotation was computed. [2023-12-16 17:41:22,587 INFO L902 garLoopResultBuilder]: At program point L945-1(lines 945 949) the Hoare annotation is: true [2023-12-16 17:41:22,587 INFO L902 garLoopResultBuilder]: At program point L941-2(lines 941 955) the Hoare annotation is: true [2023-12-16 17:41:22,587 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 931 960) the Hoare annotation is: true [2023-12-16 17:41:22,587 INFO L902 garLoopResultBuilder]: At program point L937(line 937) the Hoare annotation is: true [2023-12-16 17:41:22,587 INFO L899 garLoopResultBuilder]: For program point L937-1(line 937) no Hoare annotation was computed. [2023-12-16 17:41:22,587 INFO L899 garLoopResultBuilder]: For program point L81(lines 81 87) no Hoare annotation was computed. [2023-12-16 17:41:22,587 INFO L899 garLoopResultBuilder]: For program point L77(lines 77 90) no Hoare annotation was computed. [2023-12-16 17:41:22,587 INFO L899 garLoopResultBuilder]: For program point L77-1(lines 62 94) no Hoare annotation was computed. [2023-12-16 17:41:22,587 INFO L899 garLoopResultBuilder]: For program point L709(lines 709 717) no Hoare annotation was computed. [2023-12-16 17:41:22,587 INFO L895 garLoopResultBuilder]: At program point L69(line 69) the Hoare annotation is: (let ((.cse9 (= (_ bv0 32) ~pumpRunning~0))) (let ((.cse4 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse7 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (.cse0 (and (= ~waterLevel~0 (_ bv1 32)) .cse9)) (.cse3 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse5 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse6 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse8 (= ~waterLevel~0 (_ bv2 32)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse1 .cse6 .cse7) (or .cse5 .cse1 .cse2 .cse4 (and (= (_ bv1 32) ~pumpRunning~0) .cse8)) (or .cse5 .cse0 .cse1 .cse4 .cse7) (or .cse0 .cse1 .cse2 .cse3 .cse6) (or .cse5 .cse1 .cse2 .cse6 (and .cse8 .cse9))))) [2023-12-16 17:41:22,588 INFO L899 garLoopResultBuilder]: For program point L69-1(line 69) no Hoare annotation was computed. [2023-12-16 17:41:22,588 INFO L899 garLoopResultBuilder]: For program point L705(lines 705 722) no Hoare annotation was computed. [2023-12-16 17:41:22,588 INFO L899 garLoopResultBuilder]: For program point L474(lines 474 478) no Hoare annotation was computed. [2023-12-16 17:41:22,588 INFO L899 garLoopResultBuilder]: For program point L474-2(lines 470 481) no Hoare annotation was computed. [2023-12-16 17:41:22,588 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-12-16 17:41:22,588 INFO L899 garLoopResultBuilder]: For program point L628-1(lines 628 634) no Hoare annotation was computed. [2023-12-16 17:41:22,588 INFO L895 garLoopResultBuilder]: At program point L715(line 715) the Hoare annotation is: (let ((.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse6 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse3 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse4 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse5 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 (_ bv0 32))))) (and (or .cse0 .cse1 (and (= (_ bv1 32) ~pumpRunning~0) (= |timeShift_processEnvironment_~tmp~6#1| (_ bv0 32)) (= ~waterLevel~0 (_ bv1 32))) .cse2 .cse3) (or .cse1 .cse4 .cse5 .cse6) (or .cse0 .cse1 .cse4 .cse2) (or .cse0 .cse1 .cse4 .cse6) (or .cse0 .cse1 .cse6 .cse3) (or .cse1 .cse4 .cse5 .cse2))) [2023-12-16 17:41:22,588 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 617 640) the Hoare annotation is: (let ((.cse10 (= ~waterLevel~0 (_ bv2 32))) (.cse11 (= (_ bv0 32) ~pumpRunning~0))) (let ((.cse0 (and (= ~waterLevel~0 (_ bv1 32)) .cse11)) (.cse3 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse4 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse6 (and .cse10 .cse11)) (.cse5 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse7 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse8 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (.cse9 (and (= (_ bv1 32) ~pumpRunning~0) .cse10))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse1 .cse2 .cse4 .cse6) (or .cse0 .cse1 .cse2 .cse3 .cse7) (or .cse5 .cse1 .cse4 .cse8 .cse9) (or .cse5 .cse1 .cse2 .cse7 .cse6) (or .cse5 .cse1 .cse7 .cse8 .cse9)))) [2023-12-16 17:41:22,588 INFO L895 garLoopResultBuilder]: At program point L711(line 711) the Hoare annotation is: (let ((.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse6 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse3 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse4 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse5 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 (_ bv0 32))))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse5 .cse6) (or .cse0 .cse1 .cse4 .cse2) (or .cse0 .cse1 .cse4 .cse6) (or .cse0 .cse1 (and (= (_ bv1 32) ~pumpRunning~0) (= |timeShift_processEnvironment_~tmp~6#1| (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32))) .cse6 .cse3) (or .cse1 .cse4 .cse5 .cse2))) [2023-12-16 17:41:22,588 INFO L899 garLoopResultBuilder]: For program point L71(lines 71 91) no Hoare annotation was computed. [2023-12-16 17:41:22,589 INFO L895 garLoopResultBuilder]: At program point L707(line 707) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse2 (and (= (_ bv1 32) ~pumpRunning~0) (= ~waterLevel~0 (_ bv1 32)))) (.cse4 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse5 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse6 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse7 (not (= ~methaneLevelCritical~0 (_ bv0 32))))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse6 .cse3) (or .cse0 .cse1 .cse5 .cse7) (or .cse0 .cse1 .cse5 .cse3) (or .cse0 .cse1 .cse2 .cse7 .cse4) (or .cse1 .cse5 .cse6 .cse7))) [2023-12-16 17:41:22,589 INFO L899 garLoopResultBuilder]: For program point L707-1(line 707) no Hoare annotation was computed. [2023-12-16 17:41:22,589 INFO L895 garLoopResultBuilder]: At program point L720(line 720) the Hoare annotation is: (let ((.cse9 (= (_ bv0 32) ~pumpRunning~0))) (let ((.cse4 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse0 (and (= ~waterLevel~0 (_ bv1 32)) .cse9)) (.cse3 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse7 (not (= |old(~pumpRunning~0)| (_ bv1 32)))) (.cse5 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse8 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse6 (and (= ~waterLevel~0 (_ bv2 32)) .cse9))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse1 .cse2 .cse4 .cse6) (or .cse5 .cse1 .cse4 .cse7) (or .cse0 .cse1 .cse2 .cse3 .cse8) (or .cse5 .cse1 .cse8 .cse7) (or .cse5 .cse1 .cse2 .cse8 .cse6)))) [2023-12-16 17:41:22,589 INFO L899 garLoopResultBuilder]: For program point L720-1(lines 701 725) no Hoare annotation was computed. [2023-12-16 17:41:22,589 INFO L899 garLoopResultBuilder]: For program point L621-1(lines 620 639) no Hoare annotation was computed. [2023-12-16 17:41:22,589 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 617 640) no Hoare annotation was computed. [2023-12-16 17:41:22,589 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2023-12-16 17:41:22,589 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 506 514) the Hoare annotation is: true [2023-12-16 17:41:22,589 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 506 514) no Hoare annotation was computed. [2023-12-16 17:41:22,589 INFO L899 garLoopResultBuilder]: For program point L911(lines 911 915) no Hoare annotation was computed. [2023-12-16 17:41:22,589 INFO L895 garLoopResultBuilder]: At program point L911-2(lines 903 916) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse6 (= (_ bv1 32) ~pumpRunning~0)) (.cse0 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse7 (= ~waterLevel~0 (_ bv1 32))) (.cse5 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse2 .cse5 .cse3 .cse4) (and .cse6 .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 .cse7 .cse3 .cse4) (and .cse6 .cse0 .cse2 .cse5 .cse3) (and .cse2 .cse7 .cse5 .cse3 .cse4))) [2023-12-16 17:41:22,589 INFO L899 garLoopResultBuilder]: For program point L874(lines 873 920) no Hoare annotation was computed. [2023-12-16 17:41:22,589 INFO L899 garLoopResultBuilder]: For program point L903(lines 903 916) no Hoare annotation was computed. [2023-12-16 17:41:22,590 INFO L895 garLoopResultBuilder]: At program point L895(line 895) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 (_ bv2 32))) (.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= ~waterLevel~0 (_ bv1 32))) (.cse5 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse2 .cse5 .cse3 .cse4) (and (= (_ bv1 32) ~pumpRunning~0) .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 .cse6 .cse3 .cse4) (and .cse2 .cse6 .cse5 .cse3 .cse4))) [2023-12-16 17:41:22,590 INFO L899 garLoopResultBuilder]: For program point L924(lines 863 928) no Hoare annotation was computed. [2023-12-16 17:41:22,590 INFO L899 garLoopResultBuilder]: For program point L883(lines 883 889) no Hoare annotation was computed. [2023-12-16 17:41:22,590 INFO L899 garLoopResultBuilder]: For program point L883-1(lines 883 889) no Hoare annotation was computed. [2023-12-16 17:41:22,590 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-16 17:41:22,590 INFO L895 garLoopResultBuilder]: At program point L921(lines 872 922) the Hoare annotation is: false [2023-12-16 17:41:22,590 INFO L899 garLoopResultBuilder]: For program point L1012(lines 1012 1019) no Hoare annotation was computed. [2023-12-16 17:41:22,590 INFO L899 garLoopResultBuilder]: For program point L1012-2(lines 1012 1019) no Hoare annotation was computed. [2023-12-16 17:41:22,590 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-16 17:41:22,590 INFO L899 garLoopResultBuilder]: For program point L893(lines 893 899) no Hoare annotation was computed. [2023-12-16 17:41:22,590 INFO L899 garLoopResultBuilder]: For program point L893-1(lines 893 899) no Hoare annotation was computed. [2023-12-16 17:41:22,590 INFO L895 garLoopResultBuilder]: At program point L918(lines 873 920) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 (_ bv2 32))) (.cse5 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= ~waterLevel~0 (_ bv1 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= (_ bv1 32) ~pumpRunning~0) .cse0 .cse5 .cse1 .cse3) (and .cse5 .cse1 .cse6 .cse3 .cse4) (and .cse1 .cse6 .cse2 .cse3 .cse4))) [2023-12-16 17:41:22,590 INFO L895 garLoopResultBuilder]: At program point L885(line 885) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 (_ bv2 32))) (.cse5 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= ~waterLevel~0 (_ bv1 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= (_ bv1 32) ~pumpRunning~0) .cse0 .cse5 .cse1 .cse3) (and .cse5 .cse1 .cse6 .cse3 .cse4) (and .cse1 .cse6 .cse2 .cse3 .cse4))) [2023-12-16 17:41:22,590 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 828) no Hoare annotation was computed. [2023-12-16 17:41:22,591 INFO L895 garLoopResultBuilder]: At program point L663(line 663) the Hoare annotation is: (let ((.cse1 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse3 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse4 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse5 (not (= ~waterLevel~0 (_ bv1 32)))) (.cse6 (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| (_ bv1 32)) (= |processEnvironment__wrappee__highWaterSensor_~tmp~4#1| (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse4) (or .cse0 .cse2 .cse3 .cse5 .cse6) (or .cse0 .cse2 .cse4 .cse5 .cse6))) [2023-12-16 17:41:22,591 INFO L899 garLoopResultBuilder]: For program point L824-2(lines 824 828) no Hoare annotation was computed. [2023-12-16 17:41:22,591 INFO L899 garLoopResultBuilder]: For program point L657(lines 657 665) no Hoare annotation was computed. [2023-12-16 17:41:22,591 INFO L899 garLoopResultBuilder]: For program point L653(lines 653 670) no Hoare annotation was computed. [2023-12-16 17:41:22,591 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 649 673) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse5 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse6 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse3 (not (= ~waterLevel~0 (_ bv1 32)))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse2 .cse4) (or .cse0 .cse5 .cse1 .cse6 .cse4) (or .cse0 .cse1 .cse6 .cse3 .cse4))) [2023-12-16 17:41:22,591 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 547 560) no Hoare annotation was computed. [2023-12-16 17:41:22,591 INFO L895 garLoopResultBuilder]: At program point L668(line 668) the Hoare annotation is: (let ((.cse1 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse4 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse3 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse5 (not (= ~waterLevel~0 (_ bv1 32))))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse4) (or .cse0 .cse2 .cse4 .cse5) (or .cse0 .cse2 .cse3 .cse5))) [2023-12-16 17:41:22,591 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 649 673) no Hoare annotation was computed. [2023-12-16 17:41:22,591 INFO L899 garLoopResultBuilder]: For program point L668-1(lines 649 673) no Hoare annotation was computed. [2023-12-16 17:41:22,591 INFO L899 garLoopResultBuilder]: For program point L551(lines 551 557) no Hoare annotation was computed. [2023-12-16 17:41:22,591 INFO L899 garLoopResultBuilder]: For program point L741(lines 741 747) no Hoare annotation was computed. [2023-12-16 17:41:22,591 INFO L895 garLoopResultBuilder]: At program point L739(line 739) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse1 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse4 (and (= |processEnvironment__wrappee__highWaterSensor_~tmp~4#1| (_ bv1 32)) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse6 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse5 (not (= ~waterLevel~0 (_ bv1 32))))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse2 .cse3 .cse5) (or .cse0 .cse1 .cse2 .cse6 .cse4) (or .cse0 .cse2 .cse6 .cse5))) [2023-12-16 17:41:22,591 INFO L899 garLoopResultBuilder]: For program point L741-2(lines 734 750) no Hoare annotation was computed. [2023-12-16 17:41:22,591 INFO L899 garLoopResultBuilder]: For program point L739-1(line 739) no Hoare annotation was computed. [2023-12-16 17:41:22,592 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 482 493) no Hoare annotation was computed. [2023-12-16 17:41:22,596 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 482 493) the Hoare annotation is: (let ((.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse5 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse2 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse3 (not (= ~systemActive~0 (_ bv1 32)))) (.cse6 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse4 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse7 (= ~waterLevel~0 (_ bv1 32)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse3 .cse5 (not (= (_ bv1 32) ~pumpRunning~0))) (or .cse2 .cse3 .cse6 .cse7 .cse5) (or .cse2 .cse3 .cse6 .cse4 .cse7))) [2023-12-16 17:41:22,596 INFO L899 garLoopResultBuilder]: For program point L486-1(lines 482 493) no Hoare annotation was computed. [2023-12-16 17:41:22,596 INFO L902 garLoopResultBuilder]: At program point L764(line 764) the Hoare annotation is: true [2023-12-16 17:41:22,596 INFO L899 garLoopResultBuilder]: For program point L764-1(line 764) no Hoare annotation was computed. [2023-12-16 17:41:22,596 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 759 769) no Hoare annotation was computed. [2023-12-16 17:41:22,596 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 759 769) the Hoare annotation is: true [2023-12-16 17:41:22,598 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:41:22,599 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:41:22,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:41:22 BoogieIcfgContainer [2023-12-16 17:41:22,606 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:41:22,607 INFO L158 Benchmark]: Toolchain (without parser) took 15371.27ms. Allocated memory was 314.6MB in the beginning and 553.6MB in the end (delta: 239.1MB). Free memory was 271.4MB in the beginning and 229.0MB in the end (delta: 42.3MB). Peak memory consumption was 282.1MB. Max. memory is 8.0GB. [2023-12-16 17:41:22,607 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 173.0MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:41:22,607 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.00ms. Allocated memory is still 314.6MB. Free memory was 271.4MB in the beginning and 244.8MB in the end (delta: 26.6MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-16 17:41:22,621 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.19ms. Allocated memory is still 314.6MB. Free memory was 244.4MB in the beginning and 242.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:41:22,621 INFO L158 Benchmark]: Boogie Preprocessor took 54.17ms. Allocated memory is still 314.6MB. Free memory was 242.3MB in the beginning and 239.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:41:22,621 INFO L158 Benchmark]: RCFGBuilder took 481.16ms. Allocated memory is still 314.6MB. Free memory was 239.6MB in the beginning and 272.8MB in the end (delta: -33.2MB). Peak memory consumption was 26.5MB. Max. memory is 8.0GB. [2023-12-16 17:41:22,621 INFO L158 Benchmark]: TraceAbstraction took 14384.33ms. Allocated memory was 314.6MB in the beginning and 553.6MB in the end (delta: 239.1MB). Free memory was 272.2MB in the beginning and 229.0MB in the end (delta: 43.2MB). Peak memory consumption was 281.8MB. Max. memory is 8.0GB. [2023-12-16 17:41:22,622 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 173.0MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 387.00ms. Allocated memory is still 314.6MB. Free memory was 271.4MB in the beginning and 244.8MB in the end (delta: 26.6MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.19ms. Allocated memory is still 314.6MB. Free memory was 244.4MB in the beginning and 242.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 54.17ms. Allocated memory is still 314.6MB. Free memory was 242.3MB in the beginning and 239.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 481.16ms. Allocated memory is still 314.6MB. Free memory was 239.6MB in the beginning and 272.8MB in the end (delta: -33.2MB). Peak memory consumption was 26.5MB. Max. memory is 8.0GB. * TraceAbstraction took 14384.33ms. Allocated memory was 314.6MB in the beginning and 553.6MB in the end (delta: 239.1MB). Free memory was 272.2MB in the beginning and 229.0MB in the end (delta: 43.2MB). Peak memory consumption was 281.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [58] - GenericResultAtLocation [Line: 95]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [95] - GenericResultAtLocation [Line: 461]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [461] - GenericResultAtLocation [Line: 570]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [570] - GenericResultAtLocation [Line: 608]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [608] - GenericResultAtLocation [Line: 861]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [861] - GenericResultAtLocation [Line: 929]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [929] * 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 - PositiveResult [Line: 54]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.3s, OverallIterations: 21, TraceHistogramMax: 13, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2429 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2348 mSDsluCounter, 7026 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4933 mSDsCounter, 759 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4277 IncrementalHoareTripleChecker+Invalid, 5036 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 759 mSolverCounterUnsat, 2093 mSDtfsCounter, 4277 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2232 GetRequests, 2113 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1574occurred in iteration=18, InterpolantAutomatonStates: 141, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 21 MinimizatonAttempts, 672 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 30 LocationsWithAnnotation, 5363 PreInvPairs, 5407 NumberOfFragments, 2010 HoareAnnotationTreeSize, 5363 FormulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 30 FormulaSimplificationsInter, 969 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 2016 NumberOfCodeBlocks, 2016 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2185 ConstructedInterpolants, 0 QuantifiedInterpolants, 3709 SizeOfPredicates, 33 NumberOfNonLiveVariables, 4097 ConjunctsInSsa, 127 ConjunctsInUnsatCore, 23 InterpolantComputations, 19 PerfectInterpolantSequences, 2632/2666 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 941]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: ((((((((waterLevel == 2) && (systemActive == 1)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && (0 == pumpRunning)) || (((((1 == pumpRunning) && (waterLevel == 2)) && (methaneLevelCritical == 0)) && (systemActive == 1)) && (splverifierCounter == 0))) || (((((methaneLevelCritical == 0) && (systemActive == 1)) && (waterLevel == 1)) && (splverifierCounter == 0)) && (0 == pumpRunning))) || (((((systemActive == 1) && (waterLevel == 1)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && (0 == pumpRunning))) RESULT: Ultimate proved your program to be correct! [2023-12-16 17:41:22,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...