/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/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 18:19:07,226 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 18:19:07,279 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 18:19:07,282 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 18:19:07,282 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 18:19:07,311 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 18:19:07,312 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 18:19:07,312 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 18:19:07,313 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 18:19:07,315 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 18:19:07,316 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 18:19:07,316 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 18:19:07,316 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 18:19:07,317 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 18:19:07,317 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 18:19:07,317 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 18:19:07,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 18:19:07,317 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 18:19:07,318 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 18:19:07,318 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 18:19:07,318 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 18:19:07,319 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 18:19:07,319 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 18:19:07,319 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 18:19:07,319 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 18:19:07,319 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 18:19:07,319 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 18:19:07,320 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 18:19:07,320 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 18:19:07,320 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 18:19:07,321 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 18:19:07,321 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 18:19:07,321 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 18:19:07,321 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 18:19:07,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:19:07,321 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 18:19:07,321 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 18:19:07,321 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 18:19:07,322 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 18:19:07,322 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 18:19:07,322 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 18:19:07,322 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 18:19:07,323 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 18:19:07,323 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 18:19:07,323 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 18:19:07,323 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 18:19:07,323 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 18:19:07,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 18:19:07,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 18:19:07,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 18:19:07,488 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 18:19:07,488 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 18:19:07,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-16 18:19:08,590 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 18:19:08,922 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 18:19:08,922 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-16 18:19:08,949 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be591f187/8571db71cb3b44439d586e0158ef349c/FLAGddf30fb93 [2023-12-16 18:19:08,961 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be591f187/8571db71cb3b44439d586e0158ef349c [2023-12-16 18:19:08,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 18:19:08,965 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 18:19:08,967 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 18:19:08,967 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 18:19:08,970 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 18:19:08,971 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:19:08" (1/1) ... [2023-12-16 18:19:08,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50be63c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:19:08, skipping insertion in model container [2023-12-16 18:19:08,971 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:19:08" (1/1) ... [2023-12-16 18:19:09,070 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 18:19:09,370 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12460,12473] [2023-12-16 18:19:09,419 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[19746,19759] [2023-12-16 18:19:09,440 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[22098,22111] [2023-12-16 18:19:09,444 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23218,23231] [2023-12-16 18:19:09,469 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[26768,26781] [2023-12-16 18:19:09,481 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[27891,27904] [2023-12-16 18:19:09,487 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[30206,30219] [2023-12-16 18:19:09,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:19:09,761 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 18:19:09,798 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12460,12473] [2023-12-16 18:19:09,817 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[19746,19759] [2023-12-16 18:19:09,826 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[22098,22111] [2023-12-16 18:19:09,831 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23218,23231] [2023-12-16 18:19:09,844 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[26768,26781] [2023-12-16 18:19:09,848 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[27891,27904] [2023-12-16 18:19:09,856 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[30206,30219] [2023-12-16 18:19:10,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:19:10,084 INFO L206 MainTranslator]: Completed translation [2023-12-16 18:19:10,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:19:10 WrapperNode [2023-12-16 18:19:10,084 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 18:19:10,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 18:19:10,086 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 18:19:10,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 18:19:10,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:19:10" (1/1) ... [2023-12-16 18:19:10,140 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:19:10" (1/1) ... [2023-12-16 18:19:10,274 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 7658 [2023-12-16 18:19:10,274 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 18:19:10,274 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 18:19:10,274 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 18:19:10,275 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 18:19:10,283 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:19:10" (1/1) ... [2023-12-16 18:19:10,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:19:10" (1/1) ... [2023-12-16 18:19:10,297 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:19:10" (1/1) ... [2023-12-16 18:19:10,360 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 18:19:10,360 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:19:10" (1/1) ... [2023-12-16 18:19:10,360 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:19:10" (1/1) ... [2023-12-16 18:19:10,421 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:19:10" (1/1) ... [2023-12-16 18:19:10,446 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:19:10" (1/1) ... [2023-12-16 18:19:10,461 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:19:10" (1/1) ... [2023-12-16 18:19:10,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:19:10" (1/1) ... [2023-12-16 18:19:10,496 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 18:19:10,497 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 18:19:10,498 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 18:19:10,498 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 18:19:10,498 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:19:10" (1/1) ... [2023-12-16 18:19:10,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:19:10,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 18:19:10,521 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 18:19:10,538 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 18:19:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 18:19:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 18:19:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 18:19:10,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 18:19:10,774 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 18:19:10,775 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 18:19:13,421 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 18:19:13,495 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 18:19:13,495 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-16 18:19:13,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:19:13 BoogieIcfgContainer [2023-12-16 18:19:13,495 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 18:19:13,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 18:19:13,497 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 18:19:13,499 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 18:19:13,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:19:08" (1/3) ... [2023-12-16 18:19:13,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd4c3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:19:13, skipping insertion in model container [2023-12-16 18:19:13,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:19:10" (2/3) ... [2023-12-16 18:19:13,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd4c3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:19:13, skipping insertion in model container [2023-12-16 18:19:13,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:19:13" (3/3) ... [2023-12-16 18:19:13,500 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-16 18:19:13,511 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 18:19:13,511 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-12-16 18:19:13,551 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 18:19:13,555 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;@5747d5ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 18:19:13,555 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-12-16 18:19:13,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 1104 states, 1096 states have (on average 1.8868613138686132) internal successors, (2068), 1103 states have internal predecessors, (2068), 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 18:19:13,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-16 18:19:13,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:13,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:13,576 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:13,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:13,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1184813438, now seen corresponding path program 1 times [2023-12-16 18:19:13,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:13,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [43766652] [2023-12-16 18:19:13,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:13,589 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 18:19:13,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:13,591 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 18:19:13,645 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 18:19:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:13,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:19:13,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:14,232 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 18:19:14,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:14,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:14,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [43766652] [2023-12-16 18:19:14,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [43766652] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:14,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:14,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:19:14,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171453404] [2023-12-16 18:19:14,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:14,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:19:14,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:14,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:19:14,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:19:14,263 INFO L87 Difference]: Start difference. First operand has 1104 states, 1096 states have (on average 1.8868613138686132) internal successors, (2068), 1103 states have internal predecessors, (2068), 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) Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 18:19:15,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:15,139 INFO L93 Difference]: Finished difference Result 1795 states and 3281 transitions. [2023-12-16 18:19:15,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:19:15,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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) Word has length 63 [2023-12-16 18:19:15,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:15,156 INFO L225 Difference]: With dead ends: 1795 [2023-12-16 18:19:15,157 INFO L226 Difference]: Without dead ends: 993 [2023-12-16 18:19:15,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:19:15,164 INFO L413 NwaCegarLoop]: 1058 mSDtfsCounter, 5033 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5033 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:15,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5033 Valid, 1243 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 18:19:15,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2023-12-16 18:19:15,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 985. [2023-12-16 18:19:15,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 978 states have (on average 1.343558282208589) internal successors, (1314), 984 states have internal predecessors, (1314), 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 18:19:15,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1314 transitions. [2023-12-16 18:19:15,284 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1314 transitions. Word has length 63 [2023-12-16 18:19:15,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:15,284 INFO L495 AbstractCegarLoop]: Abstraction has 985 states and 1314 transitions. [2023-12-16 18:19:15,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 18:19:15,285 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1314 transitions. [2023-12-16 18:19:15,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 18:19:15,297 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:15,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:15,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 18:19:15,500 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 18:19:15,501 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:15,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:15,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1152487412, now seen corresponding path program 1 times [2023-12-16 18:19:15,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:15,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246878482] [2023-12-16 18:19:15,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:15,503 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 18:19:15,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:15,504 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 18:19:15,508 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 18:19:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:15,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:19:15,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:15,932 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 18:19:15,933 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:15,933 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:15,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246878482] [2023-12-16 18:19:15,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246878482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:15,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:15,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:19:15,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983436219] [2023-12-16 18:19:15,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:15,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:19:15,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:15,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:19:15,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:19:15,935 INFO L87 Difference]: Start difference. First operand 985 states and 1314 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 18:19:16,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:16,468 INFO L93 Difference]: Finished difference Result 1839 states and 2540 transitions. [2023-12-16 18:19:16,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:19:16,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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) Word has length 64 [2023-12-16 18:19:16,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:16,472 INFO L225 Difference]: With dead ends: 1839 [2023-12-16 18:19:16,472 INFO L226 Difference]: Without dead ends: 1082 [2023-12-16 18:19:16,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:19:16,474 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 2949 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2949 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:16,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2949 Valid, 691 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 18:19:16,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2023-12-16 18:19:16,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1074. [2023-12-16 18:19:16,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 1067 states have (on average 1.3983130271790065) internal successors, (1492), 1073 states have internal predecessors, (1492), 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 18:19:16,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1492 transitions. [2023-12-16 18:19:16,488 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1492 transitions. Word has length 64 [2023-12-16 18:19:16,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:16,488 INFO L495 AbstractCegarLoop]: Abstraction has 1074 states and 1492 transitions. [2023-12-16 18:19:16,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 18:19:16,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1492 transitions. [2023-12-16 18:19:16,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-16 18:19:16,489 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:16,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:16,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 18:19:16,693 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 18:19:16,693 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:16,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:16,694 INFO L85 PathProgramCache]: Analyzing trace with hash -253934231, now seen corresponding path program 1 times [2023-12-16 18:19:16,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:16,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943483485] [2023-12-16 18:19:16,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:16,694 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 18:19:16,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:16,695 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 18:19:16,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 18:19:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:16,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 18:19:16,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:17,097 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 18:19:17,097 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:17,097 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:17,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943483485] [2023-12-16 18:19:17,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943483485] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:17,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:17,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 18:19:17,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22604472] [2023-12-16 18:19:17,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:17,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:19:17,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:17,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:19:17,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:19:17,099 INFO L87 Difference]: Start difference. First operand 1074 states and 1492 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 18:19:17,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:17,428 INFO L93 Difference]: Finished difference Result 3067 states and 4433 transitions. [2023-12-16 18:19:17,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 18:19:17,428 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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) Word has length 65 [2023-12-16 18:19:17,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:17,436 INFO L225 Difference]: With dead ends: 3067 [2023-12-16 18:19:17,436 INFO L226 Difference]: Without dead ends: 2319 [2023-12-16 18:19:17,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:19:17,440 INFO L413 NwaCegarLoop]: 813 mSDtfsCounter, 3151 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3151 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:17,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3151 Valid, 1730 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 18:19:17,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2023-12-16 18:19:17,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 2305. [2023-12-16 18:19:17,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2305 states, 2298 states have (on average 1.434290687554395) internal successors, (3296), 2304 states have internal predecessors, (3296), 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 18:19:17,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 3296 transitions. [2023-12-16 18:19:17,482 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 3296 transitions. Word has length 65 [2023-12-16 18:19:17,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:17,484 INFO L495 AbstractCegarLoop]: Abstraction has 2305 states and 3296 transitions. [2023-12-16 18:19:17,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 18:19:17,486 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 3296 transitions. [2023-12-16 18:19:17,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-16 18:19:17,489 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:17,489 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:17,505 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 (4)] Ended with exit code 0 [2023-12-16 18:19:17,693 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 18:19:17,694 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:17,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:17,697 INFO L85 PathProgramCache]: Analyzing trace with hash 647200403, now seen corresponding path program 1 times [2023-12-16 18:19:17,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:17,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746664914] [2023-12-16 18:19:17,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:17,698 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 18:19:17,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:17,702 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 18:19:17,705 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 18:19:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:17,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:19:17,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:18,234 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 18:19:18,234 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:18,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:18,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746664914] [2023-12-16 18:19:18,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1746664914] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:18,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:18,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:19:18,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577074036] [2023-12-16 18:19:18,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:18,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:19:18,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:18,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:19:18,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:19:18,236 INFO L87 Difference]: Start difference. First operand 2305 states and 3296 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 18:19:18,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:18,741 INFO L93 Difference]: Finished difference Result 5440 states and 7914 transitions. [2023-12-16 18:19:18,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:19:18,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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) Word has length 65 [2023-12-16 18:19:18,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:18,750 INFO L225 Difference]: With dead ends: 5440 [2023-12-16 18:19:18,750 INFO L226 Difference]: Without dead ends: 3479 [2023-12-16 18:19:18,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:19:18,753 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 1584 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1584 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:18,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1584 Valid, 580 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 18:19:18,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2023-12-16 18:19:18,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3471. [2023-12-16 18:19:18,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3471 states, 3464 states have (on average 1.4463048498845266) internal successors, (5010), 3470 states have internal predecessors, (5010), 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 18:19:18,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3471 states to 3471 states and 5010 transitions. [2023-12-16 18:19:18,829 INFO L78 Accepts]: Start accepts. Automaton has 3471 states and 5010 transitions. Word has length 65 [2023-12-16 18:19:18,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:18,829 INFO L495 AbstractCegarLoop]: Abstraction has 3471 states and 5010 transitions. [2023-12-16 18:19:18,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 18:19:18,830 INFO L276 IsEmpty]: Start isEmpty. Operand 3471 states and 5010 transitions. [2023-12-16 18:19:18,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-16 18:19:18,831 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:18,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:18,839 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 18:19:19,034 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 18:19:19,035 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:19,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:19,035 INFO L85 PathProgramCache]: Analyzing trace with hash -933335184, now seen corresponding path program 1 times [2023-12-16 18:19:19,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:19,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201547941] [2023-12-16 18:19:19,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:19,036 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 18:19:19,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:19,038 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 18:19:19,041 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 18:19:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:19,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:19:19,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:19,472 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 18:19:19,472 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:19,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:19,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201547941] [2023-12-16 18:19:19,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201547941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:19,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:19,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 18:19:19,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526502499] [2023-12-16 18:19:19,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:19,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:19:19,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:19,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:19:19,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:19:19,474 INFO L87 Difference]: Start difference. First operand 3471 states and 5010 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 18:19:19,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:19,929 INFO L93 Difference]: Finished difference Result 9098 states and 13337 transitions. [2023-12-16 18:19:19,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:19:19,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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) Word has length 65 [2023-12-16 18:19:19,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:19,954 INFO L225 Difference]: With dead ends: 9098 [2023-12-16 18:19:19,954 INFO L226 Difference]: Without dead ends: 5883 [2023-12-16 18:19:19,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:19:19,958 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 1699 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1699 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:19,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1699 Valid, 567 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 18:19:19,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5883 states. [2023-12-16 18:19:20,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5883 to 5875. [2023-12-16 18:19:20,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5875 states, 5868 states have (on average 1.4619972733469666) internal successors, (8579), 5874 states have internal predecessors, (8579), 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 18:19:20,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5875 states to 5875 states and 8579 transitions. [2023-12-16 18:19:20,035 INFO L78 Accepts]: Start accepts. Automaton has 5875 states and 8579 transitions. Word has length 65 [2023-12-16 18:19:20,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:20,036 INFO L495 AbstractCegarLoop]: Abstraction has 5875 states and 8579 transitions. [2023-12-16 18:19:20,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 18:19:20,036 INFO L276 IsEmpty]: Start isEmpty. Operand 5875 states and 8579 transitions. [2023-12-16 18:19:20,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 18:19:20,038 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:20,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:20,046 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 18:19:20,242 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 18:19:20,242 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:20,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:20,242 INFO L85 PathProgramCache]: Analyzing trace with hash -911996321, now seen corresponding path program 1 times [2023-12-16 18:19:20,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:20,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869048649] [2023-12-16 18:19:20,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:20,243 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 18:19:20,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:20,244 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 18:19:20,276 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 18:19:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:20,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 18:19:20,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:20,621 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 18:19:20,621 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:20,622 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:20,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1869048649] [2023-12-16 18:19:20,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1869048649] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:20,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:20,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:19:20,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051283845] [2023-12-16 18:19:20,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:20,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:19:20,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:20,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:19:20,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:19:20,623 INFO L87 Difference]: Start difference. First operand 5875 states and 8579 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 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 18:19:21,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:21,187 INFO L93 Difference]: Finished difference Result 24716 states and 36460 transitions. [2023-12-16 18:19:21,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 18:19:21,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 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) Word has length 66 [2023-12-16 18:19:21,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:21,243 INFO L225 Difference]: With dead ends: 24716 [2023-12-16 18:19:21,243 INFO L226 Difference]: Without dead ends: 19349 [2023-12-16 18:19:21,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-16 18:19:21,256 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 3241 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3241 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:21,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3241 Valid, 1071 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 18:19:21,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19349 states. [2023-12-16 18:19:21,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19349 to 5855. [2023-12-16 18:19:21,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5855 states, 5848 states have (on average 1.4526333789329686) internal successors, (8495), 5854 states have internal predecessors, (8495), 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 18:19:21,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5855 states to 5855 states and 8495 transitions. [2023-12-16 18:19:21,414 INFO L78 Accepts]: Start accepts. Automaton has 5855 states and 8495 transitions. Word has length 66 [2023-12-16 18:19:21,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:21,414 INFO L495 AbstractCegarLoop]: Abstraction has 5855 states and 8495 transitions. [2023-12-16 18:19:21,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 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 18:19:21,414 INFO L276 IsEmpty]: Start isEmpty. Operand 5855 states and 8495 transitions. [2023-12-16 18:19:21,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 18:19:21,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:21,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:21,434 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 18:19:21,620 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 18:19:21,620 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:21,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:21,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1315981489, now seen corresponding path program 1 times [2023-12-16 18:19:21,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:21,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588071217] [2023-12-16 18:19:21,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:21,622 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 18:19:21,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:21,622 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 18:19:21,657 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 18:19:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:21,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:19:21,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:21,888 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 18:19:21,888 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:21,888 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:21,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588071217] [2023-12-16 18:19:21,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588071217] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:21,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:21,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:19:21,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491934656] [2023-12-16 18:19:21,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:21,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:19:21,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:21,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:19:21,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:19:21,889 INFO L87 Difference]: Start difference. First operand 5855 states and 8495 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 18:19:21,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:21,958 INFO L93 Difference]: Finished difference Result 9918 states and 14470 transitions. [2023-12-16 18:19:21,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:19:21,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) Word has length 66 [2023-12-16 18:19:21,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:21,969 INFO L225 Difference]: With dead ends: 9918 [2023-12-16 18:19:21,969 INFO L226 Difference]: Without dead ends: 7039 [2023-12-16 18:19:21,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:19:21,974 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 379 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:21,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 1157 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:19:21,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7039 states. [2023-12-16 18:19:22,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7039 to 6972. [2023-12-16 18:19:22,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6972 states, 6965 states have (on average 1.436468054558507) internal successors, (10005), 6971 states have internal predecessors, (10005), 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 18:19:22,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6972 states to 6972 states and 10005 transitions. [2023-12-16 18:19:22,107 INFO L78 Accepts]: Start accepts. Automaton has 6972 states and 10005 transitions. Word has length 66 [2023-12-16 18:19:22,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:22,107 INFO L495 AbstractCegarLoop]: Abstraction has 6972 states and 10005 transitions. [2023-12-16 18:19:22,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 18:19:22,107 INFO L276 IsEmpty]: Start isEmpty. Operand 6972 states and 10005 transitions. [2023-12-16 18:19:22,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 18:19:22,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:22,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:22,118 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 18:19:22,313 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 18:19:22,314 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:22,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:22,314 INFO L85 PathProgramCache]: Analyzing trace with hash -757718927, now seen corresponding path program 1 times [2023-12-16 18:19:22,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:22,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964728317] [2023-12-16 18:19:22,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:22,315 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 18:19:22,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:22,316 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 18:19:22,362 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 18:19:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:22,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 18:19:22,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:22,686 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 18:19:22,687 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:22,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:22,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964728317] [2023-12-16 18:19:22,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964728317] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:22,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:22,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:19:22,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261647534] [2023-12-16 18:19:22,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:22,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:19:22,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:22,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:19:22,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:19:22,688 INFO L87 Difference]: Start difference. First operand 6972 states and 10005 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 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 18:19:23,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:23,260 INFO L93 Difference]: Finished difference Result 40258 states and 58599 transitions. [2023-12-16 18:19:23,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 18:19:23,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 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) Word has length 66 [2023-12-16 18:19:23,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:23,311 INFO L225 Difference]: With dead ends: 40258 [2023-12-16 18:19:23,311 INFO L226 Difference]: Without dead ends: 34250 [2023-12-16 18:19:23,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-16 18:19:23,328 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 2282 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2282 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:23,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2282 Valid, 1153 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 18:19:23,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34250 states. [2023-12-16 18:19:23,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34250 to 6968. [2023-12-16 18:19:23,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6968 states, 6961 states have (on average 1.4183306996121248) internal successors, (9873), 6967 states have internal predecessors, (9873), 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 18:19:23,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6968 states to 6968 states and 9873 transitions. [2023-12-16 18:19:23,673 INFO L78 Accepts]: Start accepts. Automaton has 6968 states and 9873 transitions. Word has length 66 [2023-12-16 18:19:23,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:23,674 INFO L495 AbstractCegarLoop]: Abstraction has 6968 states and 9873 transitions. [2023-12-16 18:19:23,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 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 18:19:23,674 INFO L276 IsEmpty]: Start isEmpty. Operand 6968 states and 9873 transitions. [2023-12-16 18:19:23,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 18:19:23,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:23,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:23,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 18:19:23,896 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 18:19:23,896 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:23,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:23,897 INFO L85 PathProgramCache]: Analyzing trace with hash -408912616, now seen corresponding path program 1 times [2023-12-16 18:19:23,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:23,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741492756] [2023-12-16 18:19:23,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:23,897 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 18:19:23,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:23,898 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 18:19:23,900 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 18:19:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:24,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:19:24,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:24,215 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 18:19:24,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:24,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:24,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741492756] [2023-12-16 18:19:24,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741492756] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:24,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:24,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:19:24,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125900830] [2023-12-16 18:19:24,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:24,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:19:24,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:24,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:19:24,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:19:24,219 INFO L87 Difference]: Start difference. First operand 6968 states and 9873 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 18:19:24,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:24,297 INFO L93 Difference]: Finished difference Result 16899 states and 24137 transitions. [2023-12-16 18:19:24,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:19:24,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) Word has length 66 [2023-12-16 18:19:24,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:24,324 INFO L225 Difference]: With dead ends: 16899 [2023-12-16 18:19:24,324 INFO L226 Difference]: Without dead ends: 11455 [2023-12-16 18:19:24,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:19:24,339 INFO L413 NwaCegarLoop]: 856 mSDtfsCounter, 459 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:24,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 1378 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:19:24,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11455 states. [2023-12-16 18:19:24,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11455 to 11415. [2023-12-16 18:19:24,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11415 states, 11408 states have (on average 1.4158485273492285) internal successors, (16152), 11414 states have internal predecessors, (16152), 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 18:19:24,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11415 states to 11415 states and 16152 transitions. [2023-12-16 18:19:24,502 INFO L78 Accepts]: Start accepts. Automaton has 11415 states and 16152 transitions. Word has length 66 [2023-12-16 18:19:24,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:24,502 INFO L495 AbstractCegarLoop]: Abstraction has 11415 states and 16152 transitions. [2023-12-16 18:19:24,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 18:19:24,503 INFO L276 IsEmpty]: Start isEmpty. Operand 11415 states and 16152 transitions. [2023-12-16 18:19:24,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 18:19:24,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:24,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:24,528 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 (10)] Ended with exit code 0 [2023-12-16 18:19:24,714 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 18:19:24,715 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:24,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:24,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1380581678, now seen corresponding path program 1 times [2023-12-16 18:19:24,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:24,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522744408] [2023-12-16 18:19:24,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:24,716 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 18:19:24,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:24,718 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 18:19:24,724 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 18:19:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:24,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 18:19:24,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:25,123 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 18:19:25,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:25,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:25,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522744408] [2023-12-16 18:19:25,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522744408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:25,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:25,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:19:25,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356653501] [2023-12-16 18:19:25,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:25,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:19:25,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:25,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:19:25,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:19:25,126 INFO L87 Difference]: Start difference. First operand 11415 states and 16152 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 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 18:19:25,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:25,803 INFO L93 Difference]: Finished difference Result 57974 states and 83018 transitions. [2023-12-16 18:19:25,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 18:19:25,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 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) Word has length 66 [2023-12-16 18:19:25,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:25,856 INFO L225 Difference]: With dead ends: 57974 [2023-12-16 18:19:25,856 INFO L226 Difference]: Without dead ends: 48511 [2023-12-16 18:19:25,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-16 18:19:25,875 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 2098 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2098 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:25,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2098 Valid, 1148 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 18:19:25,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48511 states. [2023-12-16 18:19:26,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48511 to 11596. [2023-12-16 18:19:26,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11596 states, 11589 states have (on average 1.3957200793856244) internal successors, (16175), 11595 states have internal predecessors, (16175), 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 18:19:26,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11596 states to 11596 states and 16175 transitions. [2023-12-16 18:19:26,213 INFO L78 Accepts]: Start accepts. Automaton has 11596 states and 16175 transitions. Word has length 66 [2023-12-16 18:19:26,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:26,213 INFO L495 AbstractCegarLoop]: Abstraction has 11596 states and 16175 transitions. [2023-12-16 18:19:26,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 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 18:19:26,213 INFO L276 IsEmpty]: Start isEmpty. Operand 11596 states and 16175 transitions. [2023-12-16 18:19:26,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 18:19:26,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:26,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:26,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 18:19:26,425 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 18:19:26,426 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:26,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:26,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1890382511, now seen corresponding path program 1 times [2023-12-16 18:19:26,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:26,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366964430] [2023-12-16 18:19:26,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:26,427 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 18:19:26,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:26,427 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 18:19:26,429 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 18:19:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:26,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:19:26,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:26,695 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 18:19:26,696 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:26,696 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:26,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366964430] [2023-12-16 18:19:26,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366964430] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:26,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:26,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:19:26,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395254587] [2023-12-16 18:19:26,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:26,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:19:26,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:26,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:19:26,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:19:26,697 INFO L87 Difference]: Start difference. First operand 11596 states and 16175 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 18:19:26,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:26,764 INFO L93 Difference]: Finished difference Result 22561 states and 31593 transitions. [2023-12-16 18:19:26,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:19:26,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) Word has length 66 [2023-12-16 18:19:26,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:26,780 INFO L225 Difference]: With dead ends: 22561 [2023-12-16 18:19:26,780 INFO L226 Difference]: Without dead ends: 13531 [2023-12-16 18:19:26,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:19:26,790 INFO L413 NwaCegarLoop]: 900 mSDtfsCounter, 446 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:26,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 1420 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:19:26,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13531 states. [2023-12-16 18:19:26,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13531 to 13435. [2023-12-16 18:19:26,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13435 states, 13428 states have (on average 1.3700476616026214) internal successors, (18397), 13434 states have internal predecessors, (18397), 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 18:19:26,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13435 states to 13435 states and 18397 transitions. [2023-12-16 18:19:26,936 INFO L78 Accepts]: Start accepts. Automaton has 13435 states and 18397 transitions. Word has length 66 [2023-12-16 18:19:26,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:26,936 INFO L495 AbstractCegarLoop]: Abstraction has 13435 states and 18397 transitions. [2023-12-16 18:19:26,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 18:19:26,937 INFO L276 IsEmpty]: Start isEmpty. Operand 13435 states and 18397 transitions. [2023-12-16 18:19:26,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 18:19:26,941 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:26,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:26,948 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 18:19:27,144 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 18:19:27,145 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:27,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:27,145 INFO L85 PathProgramCache]: Analyzing trace with hash -513939457, now seen corresponding path program 1 times [2023-12-16 18:19:27,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:27,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896656330] [2023-12-16 18:19:27,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:27,145 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 18:19:27,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:27,146 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 18:19:27,148 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 18:19:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:27,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:19:27,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:27,488 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 18:19:27,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:27,489 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:27,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896656330] [2023-12-16 18:19:27,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896656330] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:27,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:27,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:19:27,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514698652] [2023-12-16 18:19:27,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:27,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:19:27,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:27,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:19:27,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:19:27,490 INFO L87 Difference]: Start difference. First operand 13435 states and 18397 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 18:19:27,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:27,565 INFO L93 Difference]: Finished difference Result 18939 states and 25910 transitions. [2023-12-16 18:19:27,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:19:27,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) Word has length 67 [2023-12-16 18:19:27,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:27,579 INFO L225 Difference]: With dead ends: 18939 [2023-12-16 18:19:27,579 INFO L226 Difference]: Without dead ends: 13840 [2023-12-16 18:19:27,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 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 18:19:27,586 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 353 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:27,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 1239 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:19:27,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13840 states. [2023-12-16 18:19:27,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13840 to 12590. [2023-12-16 18:19:27,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12590 states, 12583 states have (on average 1.3384725423190018) internal successors, (16842), 12589 states have internal predecessors, (16842), 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 18:19:27,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12590 states to 12590 states and 16842 transitions. [2023-12-16 18:19:27,703 INFO L78 Accepts]: Start accepts. Automaton has 12590 states and 16842 transitions. Word has length 67 [2023-12-16 18:19:27,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:27,703 INFO L495 AbstractCegarLoop]: Abstraction has 12590 states and 16842 transitions. [2023-12-16 18:19:27,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 18:19:27,703 INFO L276 IsEmpty]: Start isEmpty. Operand 12590 states and 16842 transitions. [2023-12-16 18:19:27,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 18:19:27,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:27,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:27,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 18:19:27,911 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 18:19:27,911 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:27,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:27,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1189983517, now seen corresponding path program 1 times [2023-12-16 18:19:27,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:27,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110867927] [2023-12-16 18:19:27,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:27,912 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 18:19:27,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:27,913 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 18:19:27,914 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 18:19:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:28,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:19:28,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:28,541 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 18:19:28,542 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:28,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:28,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110867927] [2023-12-16 18:19:28,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [110867927] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:28,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:28,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:19:28,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786264666] [2023-12-16 18:19:28,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:28,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:19:28,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:28,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:19:28,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:19:28,544 INFO L87 Difference]: Start difference. First operand 12590 states and 16842 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 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 18:19:30,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:30,186 INFO L93 Difference]: Finished difference Result 30494 states and 41556 transitions. [2023-12-16 18:19:30,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 18:19:30,187 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 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) Word has length 67 [2023-12-16 18:19:30,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:30,208 INFO L225 Difference]: With dead ends: 30494 [2023-12-16 18:19:30,208 INFO L226 Difference]: Without dead ends: 21397 [2023-12-16 18:19:30,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-16 18:19:30,220 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 2272 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2272 SdHoareTripleChecker+Valid, 1877 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:30,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2272 Valid, 1877 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 18:19:30,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21397 states. [2023-12-16 18:19:30,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21397 to 12464. [2023-12-16 18:19:30,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12464 states, 12457 states have (on average 1.3384442482138557) internal successors, (16673), 12463 states have internal predecessors, (16673), 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 18:19:30,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12464 states to 12464 states and 16673 transitions. [2023-12-16 18:19:30,373 INFO L78 Accepts]: Start accepts. Automaton has 12464 states and 16673 transitions. Word has length 67 [2023-12-16 18:19:30,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:30,373 INFO L495 AbstractCegarLoop]: Abstraction has 12464 states and 16673 transitions. [2023-12-16 18:19:30,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 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 18:19:30,373 INFO L276 IsEmpty]: Start isEmpty. Operand 12464 states and 16673 transitions. [2023-12-16 18:19:30,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 18:19:30,378 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:30,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:30,384 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 18:19:30,580 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 18:19:30,581 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:30,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:30,581 INFO L85 PathProgramCache]: Analyzing trace with hash 680595235, now seen corresponding path program 1 times [2023-12-16 18:19:30,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:30,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517388103] [2023-12-16 18:19:30,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:30,582 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 18:19:30,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:30,583 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 18:19:30,588 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 18:19:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:30,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 18:19:30,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:31,076 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 18:19:31,076 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:31,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:31,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517388103] [2023-12-16 18:19:31,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517388103] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:31,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:31,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 18:19:31,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415100565] [2023-12-16 18:19:31,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:31,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 18:19:31,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:31,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 18:19:31,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 18:19:31,077 INFO L87 Difference]: Start difference. First operand 12464 states and 16673 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 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 18:19:32,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:32,264 INFO L93 Difference]: Finished difference Result 16119 states and 21650 transitions. [2023-12-16 18:19:32,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 18:19:32,265 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 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) Word has length 68 [2023-12-16 18:19:32,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:32,276 INFO L225 Difference]: With dead ends: 16119 [2023-12-16 18:19:32,276 INFO L226 Difference]: Without dead ends: 13406 [2023-12-16 18:19:32,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 18:19:32,281 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 2775 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2775 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:32,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2775 Valid, 1355 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 18:19:32,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13406 states. [2023-12-16 18:19:32,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13406 to 12148. [2023-12-16 18:19:32,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12148 states, 12141 states have (on average 1.3383576311671197) internal successors, (16249), 12147 states have internal predecessors, (16249), 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 18:19:32,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12148 states to 12148 states and 16249 transitions. [2023-12-16 18:19:32,380 INFO L78 Accepts]: Start accepts. Automaton has 12148 states and 16249 transitions. Word has length 68 [2023-12-16 18:19:32,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:32,381 INFO L495 AbstractCegarLoop]: Abstraction has 12148 states and 16249 transitions. [2023-12-16 18:19:32,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 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 18:19:32,381 INFO L276 IsEmpty]: Start isEmpty. Operand 12148 states and 16249 transitions. [2023-12-16 18:19:32,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 18:19:32,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:32,385 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:32,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-16 18:19:32,587 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 18:19:32,588 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:32,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:32,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1167247887, now seen corresponding path program 1 times [2023-12-16 18:19:32,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:32,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970062710] [2023-12-16 18:19:32,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:32,589 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 18:19:32,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:32,589 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 18:19:32,590 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 18:19:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:32,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 18:19:32,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:32,999 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 18:19:32,999 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:32,999 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:32,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970062710] [2023-12-16 18:19:32,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970062710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:33,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:33,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:19:33,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056079612] [2023-12-16 18:19:33,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:33,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:19:33,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:33,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:19:33,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:19:33,001 INFO L87 Difference]: Start difference. First operand 12148 states and 16249 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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 18:19:33,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:33,618 INFO L93 Difference]: Finished difference Result 50684 states and 68538 transitions. [2023-12-16 18:19:33,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 18:19:33,619 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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) Word has length 68 [2023-12-16 18:19:33,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:33,666 INFO L225 Difference]: With dead ends: 50684 [2023-12-16 18:19:33,666 INFO L226 Difference]: Without dead ends: 41776 [2023-12-16 18:19:33,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-16 18:19:33,693 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 1554 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:33,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1554 Valid, 1310 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 18:19:33,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41776 states. [2023-12-16 18:19:34,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41776 to 12170. [2023-12-16 18:19:34,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12170 states, 12163 states have (on average 1.329523966126778) internal successors, (16171), 12169 states have internal predecessors, (16171), 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 18:19:34,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12170 states to 12170 states and 16171 transitions. [2023-12-16 18:19:34,041 INFO L78 Accepts]: Start accepts. Automaton has 12170 states and 16171 transitions. Word has length 68 [2023-12-16 18:19:34,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:34,042 INFO L495 AbstractCegarLoop]: Abstraction has 12170 states and 16171 transitions. [2023-12-16 18:19:34,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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 18:19:34,042 INFO L276 IsEmpty]: Start isEmpty. Operand 12170 states and 16171 transitions. [2023-12-16 18:19:34,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 18:19:34,046 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:34,046 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:34,049 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 18:19:34,249 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 18:19:34,249 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:34,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:34,250 INFO L85 PathProgramCache]: Analyzing trace with hash -2097490812, now seen corresponding path program 1 times [2023-12-16 18:19:34,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:34,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851973359] [2023-12-16 18:19:34,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:34,250 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 18:19:34,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:34,251 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 18:19:34,253 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 18:19:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:34,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:19:34,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:34,869 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 18:19:34,869 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:34,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:34,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851973359] [2023-12-16 18:19:34,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851973359] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:34,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:34,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:19:34,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145810580] [2023-12-16 18:19:34,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:34,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:19:34,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:34,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:19:34,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:19:34,871 INFO L87 Difference]: Start difference. First operand 12170 states and 16171 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 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 18:19:36,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:36,688 INFO L93 Difference]: Finished difference Result 26502 states and 35825 transitions. [2023-12-16 18:19:36,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 18:19:36,689 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 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) Word has length 68 [2023-12-16 18:19:36,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:36,706 INFO L225 Difference]: With dead ends: 26502 [2023-12-16 18:19:36,707 INFO L226 Difference]: Without dead ends: 19367 [2023-12-16 18:19:36,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-16 18:19:36,715 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 2111 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2111 SdHoareTripleChecker+Valid, 2056 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:36,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2111 Valid, 2056 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 18:19:36,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19367 states. [2023-12-16 18:19:36,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19367 to 12146. [2023-12-16 18:19:36,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12146 states, 12139 states have (on average 1.329022159980229) internal successors, (16133), 12145 states have internal predecessors, (16133), 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 18:19:36,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12146 states to 12146 states and 16133 transitions. [2023-12-16 18:19:36,886 INFO L78 Accepts]: Start accepts. Automaton has 12146 states and 16133 transitions. Word has length 68 [2023-12-16 18:19:36,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:36,886 INFO L495 AbstractCegarLoop]: Abstraction has 12146 states and 16133 transitions. [2023-12-16 18:19:36,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 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 18:19:36,887 INFO L276 IsEmpty]: Start isEmpty. Operand 12146 states and 16133 transitions. [2023-12-16 18:19:36,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 18:19:36,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:36,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:36,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-16 18:19:37,103 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 18:19:37,104 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:37,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:37,104 INFO L85 PathProgramCache]: Analyzing trace with hash 2111634662, now seen corresponding path program 1 times [2023-12-16 18:19:37,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:37,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144534033] [2023-12-16 18:19:37,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:37,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:19:37,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:37,106 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 18:19:37,117 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 18:19:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:37,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:19:37,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:37,699 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 18:19:37,699 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:37,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:37,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144534033] [2023-12-16 18:19:37,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1144534033] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:37,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:37,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:19:37,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599131621] [2023-12-16 18:19:37,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:37,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:19:37,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:37,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:19:37,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:19:37,701 INFO L87 Difference]: Start difference. First operand 12146 states and 16133 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 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 18:19:39,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:39,291 INFO L93 Difference]: Finished difference Result 21513 states and 28959 transitions. [2023-12-16 18:19:39,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 18:19:39,291 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 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) Word has length 68 [2023-12-16 18:19:39,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:39,307 INFO L225 Difference]: With dead ends: 21513 [2023-12-16 18:19:39,307 INFO L226 Difference]: Without dead ends: 16873 [2023-12-16 18:19:39,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-16 18:19:39,314 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 2548 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2548 SdHoareTripleChecker+Valid, 2071 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:39,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2548 Valid, 2071 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 18:19:39,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16873 states. [2023-12-16 18:19:39,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16873 to 12134. [2023-12-16 18:19:39,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12134 states, 12127 states have (on average 1.3284406695802755) internal successors, (16110), 12133 states have internal predecessors, (16110), 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 18:19:39,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12134 states to 12134 states and 16110 transitions. [2023-12-16 18:19:39,475 INFO L78 Accepts]: Start accepts. Automaton has 12134 states and 16110 transitions. Word has length 68 [2023-12-16 18:19:39,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:39,475 INFO L495 AbstractCegarLoop]: Abstraction has 12134 states and 16110 transitions. [2023-12-16 18:19:39,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 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 18:19:39,476 INFO L276 IsEmpty]: Start isEmpty. Operand 12134 states and 16110 transitions. [2023-12-16 18:19:39,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-16 18:19:39,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:39,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:39,495 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 18:19:39,683 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 18:19:39,684 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:39,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:39,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1885132627, now seen corresponding path program 1 times [2023-12-16 18:19:39,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:39,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011866499] [2023-12-16 18:19:39,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:39,685 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:19:39,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:39,686 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 18:19:39,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 18:19:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:39,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-16 18:19:39,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:40,848 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 18:19:40,848 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:40,849 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:40,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011866499] [2023-12-16 18:19:40,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011866499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:40,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:40,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-16 18:19:40,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941494065] [2023-12-16 18:19:40,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:40,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 18:19:40,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:40,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 18:19:40,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-16 18:19:40,852 INFO L87 Difference]: Start difference. First operand 12134 states and 16110 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 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 18:19:42,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:42,887 INFO L93 Difference]: Finished difference Result 34660 states and 46793 transitions. [2023-12-16 18:19:42,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 18:19:42,887 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 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) Word has length 69 [2023-12-16 18:19:42,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:42,910 INFO L225 Difference]: With dead ends: 34660 [2023-12-16 18:19:42,911 INFO L226 Difference]: Without dead ends: 23631 [2023-12-16 18:19:42,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2023-12-16 18:19:42,922 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 3816 mSDsluCounter, 3058 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3816 SdHoareTripleChecker+Valid, 3596 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:42,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3816 Valid, 3596 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 18:19:42,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23631 states. [2023-12-16 18:19:43,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23631 to 21455. [2023-12-16 18:19:43,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21455 states, 21449 states have (on average 1.3502261177677282) internal successors, (28961), 21454 states have internal predecessors, (28961), 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 18:19:43,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21455 states to 21455 states and 28961 transitions. [2023-12-16 18:19:43,145 INFO L78 Accepts]: Start accepts. Automaton has 21455 states and 28961 transitions. Word has length 69 [2023-12-16 18:19:43,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:43,146 INFO L495 AbstractCegarLoop]: Abstraction has 21455 states and 28961 transitions. [2023-12-16 18:19:43,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 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 18:19:43,146 INFO L276 IsEmpty]: Start isEmpty. Operand 21455 states and 28961 transitions. [2023-12-16 18:19:43,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-16 18:19:43,150 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:43,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:43,156 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 18:19:43,353 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 18:19:43,354 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:43,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:43,354 INFO L85 PathProgramCache]: Analyzing trace with hash -578802053, now seen corresponding path program 1 times [2023-12-16 18:19:43,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:43,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86811162] [2023-12-16 18:19:43,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:43,355 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 18:19:43,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:43,356 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 18:19:43,389 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 18:19:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:43,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 18:19:43,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:44,424 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 18:19:44,424 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:44,424 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:44,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [86811162] [2023-12-16 18:19:44,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [86811162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:44,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:44,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-16 18:19:44,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727278866] [2023-12-16 18:19:44,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:44,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 18:19:44,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:44,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 18:19:44,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 18:19:44,425 INFO L87 Difference]: Start difference. First operand 21455 states and 28961 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 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 18:19:45,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:45,696 INFO L93 Difference]: Finished difference Result 58397 states and 79591 transitions. [2023-12-16 18:19:45,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 18:19:45,697 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 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) Word has length 69 [2023-12-16 18:19:45,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:45,741 INFO L225 Difference]: With dead ends: 58397 [2023-12-16 18:19:45,742 INFO L226 Difference]: Without dead ends: 38278 [2023-12-16 18:19:45,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2023-12-16 18:19:45,764 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 1966 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1966 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:45,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1966 Valid, 2467 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 18:19:45,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38278 states. [2023-12-16 18:19:46,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38278 to 23263. [2023-12-16 18:19:46,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23263 states, 23259 states have (on average 1.3615804634765036) internal successors, (31669), 23262 states have internal predecessors, (31669), 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 18:19:46,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23263 states to 23263 states and 31669 transitions. [2023-12-16 18:19:46,046 INFO L78 Accepts]: Start accepts. Automaton has 23263 states and 31669 transitions. Word has length 69 [2023-12-16 18:19:46,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:46,046 INFO L495 AbstractCegarLoop]: Abstraction has 23263 states and 31669 transitions. [2023-12-16 18:19:46,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 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 18:19:46,046 INFO L276 IsEmpty]: Start isEmpty. Operand 23263 states and 31669 transitions. [2023-12-16 18:19:46,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-16 18:19:46,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:46,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:46,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 18:19:46,252 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 18:19:46,253 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:46,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:46,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1516776224, now seen corresponding path program 1 times [2023-12-16 18:19:46,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:46,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417421809] [2023-12-16 18:19:46,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:46,254 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 18:19:46,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:46,255 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 18:19:46,256 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 18:19:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:46,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 18:19:46,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:47,467 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 18:19:47,467 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:47,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:47,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417421809] [2023-12-16 18:19:47,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1417421809] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:47,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:47,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-16 18:19:47,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454533516] [2023-12-16 18:19:47,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:47,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 18:19:47,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:47,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 18:19:47,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2023-12-16 18:19:47,469 INFO L87 Difference]: Start difference. First operand 23263 states and 31669 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 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 18:19:48,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:48,396 INFO L93 Difference]: Finished difference Result 58648 states and 80160 transitions. [2023-12-16 18:19:48,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 18:19:48,397 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 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) Word has length 69 [2023-12-16 18:19:48,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:48,443 INFO L225 Difference]: With dead ends: 58648 [2023-12-16 18:19:48,443 INFO L226 Difference]: Without dead ends: 40867 [2023-12-16 18:19:48,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2023-12-16 18:19:48,465 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 1353 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 2531 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:48,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 2531 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 18:19:48,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40867 states. [2023-12-16 18:19:48,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40867 to 34090. [2023-12-16 18:19:48,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34090 states, 34087 states have (on average 1.366738052630035) internal successors, (46588), 34089 states have internal predecessors, (46588), 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 18:19:48,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34090 states to 34090 states and 46588 transitions. [2023-12-16 18:19:48,942 INFO L78 Accepts]: Start accepts. Automaton has 34090 states and 46588 transitions. Word has length 69 [2023-12-16 18:19:48,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:48,942 INFO L495 AbstractCegarLoop]: Abstraction has 34090 states and 46588 transitions. [2023-12-16 18:19:48,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 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 18:19:48,942 INFO L276 IsEmpty]: Start isEmpty. Operand 34090 states and 46588 transitions. [2023-12-16 18:19:48,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-16 18:19:48,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:48,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:48,949 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 18:19:49,179 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 18:19:49,179 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:49,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:49,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1227479287, now seen corresponding path program 1 times [2023-12-16 18:19:49,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:49,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361667712] [2023-12-16 18:19:49,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:49,180 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 18:19:49,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:49,190 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 18:19:49,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-16 18:19:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:49,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:19:49,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:49,498 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 18:19:49,499 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:49,499 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:49,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361667712] [2023-12-16 18:19:49,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361667712] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:49,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:49,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:19:49,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580576712] [2023-12-16 18:19:49,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:49,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:19:49,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:49,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:19:49,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:19:49,500 INFO L87 Difference]: Start difference. First operand 34090 states and 46588 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 18:19:49,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:49,689 INFO L93 Difference]: Finished difference Result 45284 states and 61786 transitions. [2023-12-16 18:19:49,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:19:49,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) Word has length 69 [2023-12-16 18:19:49,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:49,715 INFO L225 Difference]: With dead ends: 45284 [2023-12-16 18:19:49,715 INFO L226 Difference]: Without dead ends: 27241 [2023-12-16 18:19:49,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 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 18:19:49,726 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 257 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:49,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 735 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:19:49,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27241 states. [2023-12-16 18:19:49,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27241 to 26253. [2023-12-16 18:19:49,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26253 states, 26250 states have (on average 1.351504761904762) internal successors, (35477), 26252 states have internal predecessors, (35477), 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 18:19:50,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26253 states to 26253 states and 35477 transitions. [2023-12-16 18:19:50,029 INFO L78 Accepts]: Start accepts. Automaton has 26253 states and 35477 transitions. Word has length 69 [2023-12-16 18:19:50,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:50,029 INFO L495 AbstractCegarLoop]: Abstraction has 26253 states and 35477 transitions. [2023-12-16 18:19:50,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 18:19:50,029 INFO L276 IsEmpty]: Start isEmpty. Operand 26253 states and 35477 transitions. [2023-12-16 18:19:50,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-16 18:19:50,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:50,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:50,036 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 18:19:50,235 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 18:19:50,236 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:50,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:50,236 INFO L85 PathProgramCache]: Analyzing trace with hash -360349785, now seen corresponding path program 1 times [2023-12-16 18:19:50,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:50,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041201354] [2023-12-16 18:19:50,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:50,237 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 18:19:50,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:50,238 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:19:50,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 18:19:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:50,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-16 18:19:50,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:51,417 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 18:19:51,417 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:51,417 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:51,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041201354] [2023-12-16 18:19:51,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041201354] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:51,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:51,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-16 18:19:51,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547278838] [2023-12-16 18:19:51,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:51,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 18:19:51,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:51,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 18:19:51,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-16 18:19:51,419 INFO L87 Difference]: Start difference. First operand 26253 states and 35477 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 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 18:19:52,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:52,812 INFO L93 Difference]: Finished difference Result 41626 states and 56273 transitions. [2023-12-16 18:19:52,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 18:19:52,812 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 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) Word has length 69 [2023-12-16 18:19:52,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:52,843 INFO L225 Difference]: With dead ends: 41626 [2023-12-16 18:19:52,843 INFO L226 Difference]: Without dead ends: 29555 [2023-12-16 18:19:52,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2023-12-16 18:19:52,858 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 1337 mSDsluCounter, 2395 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 2686 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:52,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 2686 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 18:19:52,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29555 states. [2023-12-16 18:19:53,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29555 to 26028. [2023-12-16 18:19:53,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26028 states, 26027 states have (on average 1.3518269489376418) internal successors, (35184), 26027 states have internal predecessors, (35184), 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 18:19:53,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26028 states to 26028 states and 35184 transitions. [2023-12-16 18:19:53,162 INFO L78 Accepts]: Start accepts. Automaton has 26028 states and 35184 transitions. Word has length 69 [2023-12-16 18:19:53,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:53,162 INFO L495 AbstractCegarLoop]: Abstraction has 26028 states and 35184 transitions. [2023-12-16 18:19:53,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 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 18:19:53,163 INFO L276 IsEmpty]: Start isEmpty. Operand 26028 states and 35184 transitions. [2023-12-16 18:19:53,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 18:19:53,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:53,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:53,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-16 18:19:53,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:19:53,379 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:53,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:53,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1544222866, now seen corresponding path program 1 times [2023-12-16 18:19:53,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:53,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888171685] [2023-12-16 18:19:53,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:53,379 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 18:19:53,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:53,390 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:19:53,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-16 18:19:53,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:53,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:19:53,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:54,028 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 18:19:54,029 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:54,029 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:54,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888171685] [2023-12-16 18:19:54,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888171685] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:54,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:54,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:19:54,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234970378] [2023-12-16 18:19:54,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:54,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:19:54,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:54,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:19:54,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:19:54,030 INFO L87 Difference]: Start difference. First operand 26028 states and 35184 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 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 18:19:55,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:55,043 INFO L93 Difference]: Finished difference Result 52840 states and 71570 transitions. [2023-12-16 18:19:55,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 18:19:55,044 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 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) Word has length 86 [2023-12-16 18:19:55,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:55,073 INFO L225 Difference]: With dead ends: 52840 [2023-12-16 18:19:55,074 INFO L226 Difference]: Without dead ends: 29618 [2023-12-16 18:19:55,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-16 18:19:55,090 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 1162 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:55,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 1178 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 18:19:55,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29618 states. [2023-12-16 18:19:55,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29618 to 23626. [2023-12-16 18:19:55,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23626 states, 23625 states have (on average 1.351068783068783) internal successors, (31919), 23625 states have internal predecessors, (31919), 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 18:19:55,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23626 states to 23626 states and 31919 transitions. [2023-12-16 18:19:55,390 INFO L78 Accepts]: Start accepts. Automaton has 23626 states and 31919 transitions. Word has length 86 [2023-12-16 18:19:55,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:55,391 INFO L495 AbstractCegarLoop]: Abstraction has 23626 states and 31919 transitions. [2023-12-16 18:19:55,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 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 18:19:55,391 INFO L276 IsEmpty]: Start isEmpty. Operand 23626 states and 31919 transitions. [2023-12-16 18:19:55,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 18:19:55,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:55,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:55,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 18:19:55,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:19:55,604 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:55,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:55,604 INFO L85 PathProgramCache]: Analyzing trace with hash -217801487, now seen corresponding path program 1 times [2023-12-16 18:19:55,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:55,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349013593] [2023-12-16 18:19:55,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:55,605 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 18:19:55,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:55,606 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:19:55,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 18:19:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:55,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:19:55,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:56,163 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 18:19:56,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:56,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:56,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349013593] [2023-12-16 18:19:56,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349013593] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:56,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:56,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:19:56,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318911219] [2023-12-16 18:19:56,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:56,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:19:56,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:56,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:19:56,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:19:56,165 INFO L87 Difference]: Start difference. First operand 23626 states and 31919 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 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 18:19:57,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:57,259 INFO L93 Difference]: Finished difference Result 41979 states and 56793 transitions. [2023-12-16 18:19:57,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 18:19:57,260 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 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) Word has length 86 [2023-12-16 18:19:57,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:57,289 INFO L225 Difference]: With dead ends: 41979 [2023-12-16 18:19:57,289 INFO L226 Difference]: Without dead ends: 27025 [2023-12-16 18:19:57,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-16 18:19:57,300 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 1097 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:57,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 1232 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 18:19:57,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27025 states. [2023-12-16 18:19:57,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27025 to 23586. [2023-12-16 18:19:57,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23586 states, 23585 states have (on average 1.3503497986008055) internal successors, (31848), 23585 states have internal predecessors, (31848), 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 18:19:57,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23586 states to 23586 states and 31848 transitions. [2023-12-16 18:19:57,527 INFO L78 Accepts]: Start accepts. Automaton has 23586 states and 31848 transitions. Word has length 86 [2023-12-16 18:19:57,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:57,527 INFO L495 AbstractCegarLoop]: Abstraction has 23586 states and 31848 transitions. [2023-12-16 18:19:57,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 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 18:19:57,527 INFO L276 IsEmpty]: Start isEmpty. Operand 23586 states and 31848 transitions. [2023-12-16 18:19:57,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 18:19:57,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:57,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:57,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-12-16 18:19:57,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:19:57,738 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:57,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:57,738 INFO L85 PathProgramCache]: Analyzing trace with hash 961560528, now seen corresponding path program 1 times [2023-12-16 18:19:57,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:57,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546538128] [2023-12-16 18:19:57,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:57,739 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 18:19:57,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:57,740 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:19:57,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-16 18:19:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:19:57,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:19:57,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:19:58,336 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 18:19:58,337 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:19:58,337 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:19:58,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546538128] [2023-12-16 18:19:58,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546538128] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:19:58,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:19:58,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:19:58,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979450394] [2023-12-16 18:19:58,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:19:58,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:19:58,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:19:58,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:19:58,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:19:58,338 INFO L87 Difference]: Start difference. First operand 23586 states and 31848 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 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 18:19:59,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:19:59,344 INFO L93 Difference]: Finished difference Result 36350 states and 49162 transitions. [2023-12-16 18:19:59,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 18:19:59,345 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 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) Word has length 86 [2023-12-16 18:19:59,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:19:59,367 INFO L225 Difference]: With dead ends: 36350 [2023-12-16 18:19:59,367 INFO L226 Difference]: Without dead ends: 23578 [2023-12-16 18:19:59,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-16 18:19:59,379 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 1536 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 18:19:59,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1536 Valid, 1192 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 18:19:59,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23578 states. [2023-12-16 18:19:59,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23578 to 23492. [2023-12-16 18:19:59,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23492 states, 23491 states have (on average 1.3507726363288068) internal successors, (31731), 23491 states have internal predecessors, (31731), 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 18:19:59,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23492 states to 23492 states and 31731 transitions. [2023-12-16 18:19:59,633 INFO L78 Accepts]: Start accepts. Automaton has 23492 states and 31731 transitions. Word has length 86 [2023-12-16 18:19:59,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:19:59,634 INFO L495 AbstractCegarLoop]: Abstraction has 23492 states and 31731 transitions. [2023-12-16 18:19:59,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 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 18:19:59,634 INFO L276 IsEmpty]: Start isEmpty. Operand 23492 states and 31731 transitions. [2023-12-16 18:19:59,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 18:19:59,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:19:59,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:19:59,644 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2023-12-16 18:19:59,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:19:59,844 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:19:59,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:19:59,845 INFO L85 PathProgramCache]: Analyzing trace with hash 106736454, now seen corresponding path program 1 times [2023-12-16 18:19:59,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:19:59,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300194702] [2023-12-16 18:19:59,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:19:59,845 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:19:59,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:19:59,846 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:19:59,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-16 18:20:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:20:00,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:20:00,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:20:00,120 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 18:20:00,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:20:00,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:20:00,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300194702] [2023-12-16 18:20:00,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300194702] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:20:00,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:20:00,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:20:00,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271071867] [2023-12-16 18:20:00,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:20:00,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:20:00,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:20:00,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:20:00,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:20:00,122 INFO L87 Difference]: Start difference. First operand 23492 states and 31731 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 18:20:00,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:20:00,281 INFO L93 Difference]: Finished difference Result 64652 states and 87985 transitions. [2023-12-16 18:20:00,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:20:00,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) Word has length 87 [2023-12-16 18:20:00,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:20:00,329 INFO L225 Difference]: With dead ends: 64652 [2023-12-16 18:20:00,330 INFO L226 Difference]: Without dead ends: 42146 [2023-12-16 18:20:00,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 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 18:20:00,356 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 155 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:20:00,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 662 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:20:00,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42146 states. [2023-12-16 18:20:00,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42146 to 42144. [2023-12-16 18:20:00,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42144 states, 42143 states have (on average 1.3505208456920486) internal successors, (56915), 42143 states have internal predecessors, (56915), 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 18:20:00,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42144 states to 42144 states and 56915 transitions. [2023-12-16 18:20:00,929 INFO L78 Accepts]: Start accepts. Automaton has 42144 states and 56915 transitions. Word has length 87 [2023-12-16 18:20:00,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:20:00,929 INFO L495 AbstractCegarLoop]: Abstraction has 42144 states and 56915 transitions. [2023-12-16 18:20:00,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 18:20:00,929 INFO L276 IsEmpty]: Start isEmpty. Operand 42144 states and 56915 transitions. [2023-12-16 18:20:00,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 18:20:00,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:20:00,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:20:00,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-16 18:20:01,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:20:01,135 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:20:01,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:20:01,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1286083711, now seen corresponding path program 1 times [2023-12-16 18:20:01,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:20:01,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110658694] [2023-12-16 18:20:01,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:20:01,136 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 18:20:01,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:20:01,137 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:20:01,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-16 18:20:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:20:01,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:20:01,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:20:01,437 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 18:20:01,438 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:20:01,438 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:20:01,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110658694] [2023-12-16 18:20:01,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110658694] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:20:01,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:20:01,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:20:01,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008055144] [2023-12-16 18:20:01,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:20:01,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:20:01,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:20:01,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:20:01,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:20:01,440 INFO L87 Difference]: Start difference. First operand 42144 states and 56915 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 18:20:01,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:20:01,991 INFO L93 Difference]: Finished difference Result 117040 states and 158425 transitions. [2023-12-16 18:20:01,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:20:01,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) Word has length 88 [2023-12-16 18:20:01,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:20:02,071 INFO L225 Difference]: With dead ends: 117040 [2023-12-16 18:20:02,071 INFO L226 Difference]: Without dead ends: 75882 [2023-12-16 18:20:02,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 86 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 18:20:02,095 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 153 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:20:02,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 646 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:20:02,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75882 states. [2023-12-16 18:20:02,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75882 to 75880. [2023-12-16 18:20:02,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75880 states, 75879 states have (on average 1.3407530410258437) internal successors, (101735), 75879 states have internal predecessors, (101735), 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 18:20:03,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75880 states to 75880 states and 101735 transitions. [2023-12-16 18:20:03,306 INFO L78 Accepts]: Start accepts. Automaton has 75880 states and 101735 transitions. Word has length 88 [2023-12-16 18:20:03,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:20:03,306 INFO L495 AbstractCegarLoop]: Abstraction has 75880 states and 101735 transitions. [2023-12-16 18:20:03,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 18:20:03,306 INFO L276 IsEmpty]: Start isEmpty. Operand 75880 states and 101735 transitions. [2023-12-16 18:20:03,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-16 18:20:03,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:20:03,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:20:03,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2023-12-16 18:20:03,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:20:03,513 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:20:03,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:20:03,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1241309303, now seen corresponding path program 1 times [2023-12-16 18:20:03,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:20:03,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [854114613] [2023-12-16 18:20:03,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:20:03,514 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:20:03,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:20:03,515 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:20:03,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-16 18:20:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:20:03,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:20:03,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:20:03,804 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 18:20:03,804 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:20:03,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:20:03,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [854114613] [2023-12-16 18:20:03,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [854114613] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:20:03,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:20:03,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:20:03,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014806907] [2023-12-16 18:20:03,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:20:03,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:20:03,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:20:03,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:20:03,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:20:03,807 INFO L87 Difference]: Start difference. First operand 75880 states and 101735 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 18:20:04,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:20:04,072 INFO L93 Difference]: Finished difference Result 95440 states and 127937 transitions. [2023-12-16 18:20:04,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:20:04,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) Word has length 89 [2023-12-16 18:20:04,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:20:04,134 INFO L225 Difference]: With dead ends: 95440 [2023-12-16 18:20:04,134 INFO L226 Difference]: Without dead ends: 55129 [2023-12-16 18:20:04,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 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 18:20:04,164 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 184 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:20:04,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 673 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:20:04,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55129 states. [2023-12-16 18:20:04,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55129 to 40679. [2023-12-16 18:20:04,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40679 states, 40678 states have (on average 1.3305718078568267) internal successors, (54125), 40678 states have internal predecessors, (54125), 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 18:20:04,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40679 states to 40679 states and 54125 transitions. [2023-12-16 18:20:04,844 INFO L78 Accepts]: Start accepts. Automaton has 40679 states and 54125 transitions. Word has length 89 [2023-12-16 18:20:04,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:20:04,844 INFO L495 AbstractCegarLoop]: Abstraction has 40679 states and 54125 transitions. [2023-12-16 18:20:04,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 18:20:04,844 INFO L276 IsEmpty]: Start isEmpty. Operand 40679 states and 54125 transitions. [2023-12-16 18:20:04,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-16 18:20:04,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:20:04,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:20:04,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-16 18:20:05,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:20:05,064 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:20:05,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:20:05,065 INFO L85 PathProgramCache]: Analyzing trace with hash -254066092, now seen corresponding path program 1 times [2023-12-16 18:20:05,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:20:05,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328122204] [2023-12-16 18:20:05,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:20:05,065 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 18:20:05,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:20:05,067 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:20:05,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-16 18:20:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:20:05,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:20:05,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:20:05,338 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 18:20:05,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:20:05,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:20:05,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328122204] [2023-12-16 18:20:05,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328122204] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:20:05,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:20:05,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:20:05,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804159955] [2023-12-16 18:20:05,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:20:05,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:20:05,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:20:05,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:20:05,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:20:05,339 INFO L87 Difference]: Start difference. First operand 40679 states and 54125 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 18:20:05,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:20:05,604 INFO L93 Difference]: Finished difference Result 112883 states and 150151 transitions. [2023-12-16 18:20:05,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:20:05,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) Word has length 89 [2023-12-16 18:20:05,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:20:05,688 INFO L225 Difference]: With dead ends: 112883 [2023-12-16 18:20:05,688 INFO L226 Difference]: Without dead ends: 72917 [2023-12-16 18:20:05,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 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 18:20:05,726 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 158 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:20:05,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 619 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:20:05,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72917 states. [2023-12-16 18:20:06,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72917 to 72915. [2023-12-16 18:20:06,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72915 states, 72914 states have (on average 1.3152069561401103) internal successors, (95897), 72914 states have internal predecessors, (95897), 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 18:20:06,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72915 states to 72915 states and 95897 transitions. [2023-12-16 18:20:06,849 INFO L78 Accepts]: Start accepts. Automaton has 72915 states and 95897 transitions. Word has length 89 [2023-12-16 18:20:06,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:20:06,850 INFO L495 AbstractCegarLoop]: Abstraction has 72915 states and 95897 transitions. [2023-12-16 18:20:06,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 18:20:06,850 INFO L276 IsEmpty]: Start isEmpty. Operand 72915 states and 95897 transitions. [2023-12-16 18:20:06,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 18:20:06,852 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:20:06,852 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:20:06,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-16 18:20:07,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:20:07,055 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:20:07,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:20:07,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1475713053, now seen corresponding path program 1 times [2023-12-16 18:20:07,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:20:07,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952980329] [2023-12-16 18:20:07,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:20:07,056 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 18:20:07,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:20:07,057 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:20:07,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-16 18:20:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:20:07,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:20:07,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:20:07,332 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 18:20:07,332 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:20:07,333 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:20:07,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952980329] [2023-12-16 18:20:07,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952980329] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:20:07,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:20:07,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:20:07,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486103875] [2023-12-16 18:20:07,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:20:07,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:20:07,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:20:07,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:20:07,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:20:07,334 INFO L87 Difference]: Start difference. First operand 72915 states and 95897 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 18:20:07,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:20:07,835 INFO L93 Difference]: Finished difference Result 190919 states and 252209 transitions. [2023-12-16 18:20:07,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:20:07,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) Word has length 90 [2023-12-16 18:20:07,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:20:08,107 INFO L225 Difference]: With dead ends: 190919 [2023-12-16 18:20:08,107 INFO L226 Difference]: Without dead ends: 114541 [2023-12-16 18:20:08,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 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 18:20:08,130 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 180 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 18:20:08,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 568 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 18:20:08,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114541 states. [2023-12-16 18:20:09,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114541 to 112446. [2023-12-16 18:20:09,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112446 states, 112445 states have (on average 1.3095113166436925) internal successors, (147248), 112445 states have internal predecessors, (147248), 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 18:20:09,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112446 states to 112446 states and 147248 transitions. [2023-12-16 18:20:09,396 INFO L78 Accepts]: Start accepts. Automaton has 112446 states and 147248 transitions. Word has length 90 [2023-12-16 18:20:09,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:20:09,396 INFO L495 AbstractCegarLoop]: Abstraction has 112446 states and 147248 transitions. [2023-12-16 18:20:09,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 18:20:09,396 INFO L276 IsEmpty]: Start isEmpty. Operand 112446 states and 147248 transitions. [2023-12-16 18:20:09,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 18:20:09,398 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:20:09,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:20:09,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-16 18:20:09,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:20:09,601 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:20:09,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:20:09,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1307855058, now seen corresponding path program 1 times [2023-12-16 18:20:09,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:20:09,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911845244] [2023-12-16 18:20:09,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:20:09,602 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 18:20:09,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:20:09,793 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:20:09,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-16 18:20:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:20:10,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 18:20:10,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:20:10,757 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 18:20:10,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:20:10,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:20:10,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911845244] [2023-12-16 18:20:10,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911845244] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:20:10,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:20:10,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 18:20:10,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875798938] [2023-12-16 18:20:10,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:20:10,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:20:10,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:20:10,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:20:10,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:20:10,759 INFO L87 Difference]: Start difference. First operand 112446 states and 147248 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 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 18:20:12,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:20:12,180 INFO L93 Difference]: Finished difference Result 444588 states and 583217 transitions. [2023-12-16 18:20:12,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 18:20:12,181 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 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) Word has length 93 [2023-12-16 18:20:12,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:20:12,648 INFO L225 Difference]: With dead ends: 444588 [2023-12-16 18:20:12,648 INFO L226 Difference]: Without dead ends: 332855 [2023-12-16 18:20:12,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:20:12,735 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 686 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:20:12,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 812 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:20:12,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332855 states. [2023-12-16 18:20:15,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332855 to 224174. [2023-12-16 18:20:15,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224174 states, 224173 states have (on average 1.2827682191878593) internal successors, (287562), 224173 states have internal predecessors, (287562), 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 18:20:16,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224174 states to 224174 states and 287562 transitions. [2023-12-16 18:20:16,394 INFO L78 Accepts]: Start accepts. Automaton has 224174 states and 287562 transitions. Word has length 93 [2023-12-16 18:20:16,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:20:16,394 INFO L495 AbstractCegarLoop]: Abstraction has 224174 states and 287562 transitions. [2023-12-16 18:20:16,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 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 18:20:16,394 INFO L276 IsEmpty]: Start isEmpty. Operand 224174 states and 287562 transitions. [2023-12-16 18:20:16,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 18:20:16,396 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:20:16,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:20:16,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-16 18:20:16,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:20:16,600 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 18:20:16,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:20:16,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1113904835, now seen corresponding path program 1 times [2023-12-16 18:20:16,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:20:16,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907426041] [2023-12-16 18:20:16,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:20:16,601 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 18:20:16,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:20:16,602 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:20:16,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process Received shutdown request... [2023-12-16 18:20:16,670 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:20:16,711 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:20:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:20:16,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 18:20:16,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:20:16,906 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-12-16 18:20:16,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-16 18:20:17,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:20:17,110 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 95 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. [2023-12-16 18:20:17,111 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-12-16 18:20:17,112 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-12-16 18:20:17,112 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-12-16 18:20:17,112 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-12-16 18:20:17,112 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-12-16 18:20:17,112 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-12-16 18:20:17,114 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:20:17,116 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 18:20:17,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:20:17 BoogieIcfgContainer [2023-12-16 18:20:17,136 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 18:20:17,140 INFO L158 Benchmark]: Toolchain (without parser) took 68171.19ms. Allocated memory was 251.7MB in the beginning and 6.3GB in the end (delta: 6.1GB). Free memory was 193.9MB in the beginning and 3.9GB in the end (delta: -3.7GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2023-12-16 18:20:17,140 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 190.8MB. Free memory was 138.9MB in the beginning and 138.7MB in the end (delta: 151.2kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 18:20:17,142 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1117.76ms. Allocated memory is still 251.7MB. Free memory was 193.4MB in the beginning and 135.9MB in the end (delta: 57.5MB). Peak memory consumption was 62.2MB. Max. memory is 8.0GB. [2023-12-16 18:20:17,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 188.29ms. Allocated memory is still 251.7MB. Free memory was 135.9MB in the beginning and 199.9MB in the end (delta: -64.0MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-12-16 18:20:17,144 INFO L158 Benchmark]: Boogie Preprocessor took 222.28ms. Allocated memory is still 251.7MB. Free memory was 199.9MB in the beginning and 171.6MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-16 18:20:17,144 INFO L158 Benchmark]: RCFGBuilder took 2997.92ms. Allocated memory was 251.7MB in the beginning and 392.2MB in the end (delta: 140.5MB). Free memory was 171.6MB in the beginning and 320.6MB in the end (delta: -149.0MB). Peak memory consumption was 166.6MB. Max. memory is 8.0GB. [2023-12-16 18:20:17,148 INFO L158 Benchmark]: TraceAbstraction took 63639.42ms. Allocated memory was 392.2MB in the beginning and 6.3GB in the end (delta: 5.9GB). Free memory was 319.6MB in the beginning and 3.9GB in the end (delta: -3.5GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2023-12-16 18:20:17,149 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 190.8MB. Free memory was 138.9MB in the beginning and 138.7MB in the end (delta: 151.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1117.76ms. Allocated memory is still 251.7MB. Free memory was 193.4MB in the beginning and 135.9MB in the end (delta: 57.5MB). Peak memory consumption was 62.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 188.29ms. Allocated memory is still 251.7MB. Free memory was 135.9MB in the beginning and 199.9MB in the end (delta: -64.0MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 222.28ms. Allocated memory is still 251.7MB. Free memory was 199.9MB in the beginning and 171.6MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * RCFGBuilder took 2997.92ms. Allocated memory was 251.7MB in the beginning and 392.2MB in the end (delta: 140.5MB). Free memory was 171.6MB in the beginning and 320.6MB in the end (delta: -149.0MB). Peak memory consumption was 166.6MB. Max. memory is 8.0GB. * TraceAbstraction took 63639.42ms. Allocated memory was 392.2MB in the beginning and 6.3GB in the end (delta: 5.9GB). Free memory was 319.6MB in the beginning and 3.9GB in the end (delta: -3.5GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 649]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 649). Cancelled while NwaCegarLoop was analyzing trace of length 95 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 1230]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1230). Cancelled while NwaCegarLoop was analyzing trace of length 95 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 1410]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1410). Cancelled while NwaCegarLoop was analyzing trace of length 95 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 1496]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1496). Cancelled while NwaCegarLoop was analyzing trace of length 95 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 1767]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1767). Cancelled while NwaCegarLoop was analyzing trace of length 95 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 1853]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1853). Cancelled while NwaCegarLoop was analyzing trace of length 95 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 2030]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2030). Cancelled while NwaCegarLoop was analyzing trace of length 95 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1104 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 63.6s, OverallIterations: 32, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 26.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48974 SdHoareTripleChecker+Valid, 16.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48974 mSDsluCounter, 41643 SdHoareTripleChecker+Invalid, 14.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26068 mSDsCounter, 895 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14571 IncrementalHoareTripleChecker+Invalid, 15466 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 895 mSolverCounterUnsat, 15575 mSDtfsCounter, 14571 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2337 GetRequests, 2099 SyntacticMatches, 0 SemanticMatches, 238 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=224174occurred in iteration=31, InterpolantAutomatonStates: 244, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 13.5s AutomataMinimizationTime, 31 MinimizatonAttempts, 294179 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 8.7s InterpolantComputationTime, 2263 NumberOfCodeBlocks, 2263 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 2232 ConstructedInterpolants, 545 QuantifiedInterpolants, 21467 SizeOfPredicates, 78 NumberOfNonLiveVariables, 10845 ConjunctsInSsa, 191 ConjunctsInUnsatCore, 31 InterpolantComputations, 31 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown