/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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 10:10:44,220 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 10:10:44,301 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 10:10:44,306 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 10:10:44,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 10:10:44,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 10:10:44,341 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 10:10:44,341 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 10:10:44,342 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 10:10:44,345 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 10:10:44,346 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 10:10:44,346 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 10:10:44,347 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 10:10:44,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 10:10:44,348 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 10:10:44,349 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 10:10:44,349 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 10:10:44,350 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 10:10:44,350 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 10:10:44,350 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 10:10:44,350 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 10:10:44,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 10:10:44,351 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 10:10:44,351 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 10:10:44,351 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 10:10:44,352 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 10:10:44,352 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 10:10:44,352 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 10:10:44,352 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 10:10:44,353 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 10:10:44,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 10:10:44,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 10:10:44,354 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 10:10:44,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 10:10:44,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 10:10:44,354 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 10:10:44,355 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 10:10:44,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 10:10:44,355 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 10:10:44,355 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 10:10:44,355 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 10:10:44,356 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 10:10:44,356 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 10:10:44,356 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 10:10:44,357 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 10:10:44,357 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 10:10:44,357 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 10:10:44,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 10:10:44,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 10:10:44,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 10:10:44,576 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 10:10:44,577 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 10:10:44,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-25 10:10:45,773 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 10:10:46,093 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 10:10:46,094 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-25 10:10:46,117 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/927ccf5cd/ce3755b425784f8f833433bc8ea90be2/FLAGa7dc98673 [2023-12-25 10:10:46,131 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/927ccf5cd/ce3755b425784f8f833433bc8ea90be2 [2023-12-25 10:10:46,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 10:10:46,135 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 10:10:46,137 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 10:10:46,137 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 10:10:46,141 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 10:10:46,142 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 10:10:46" (1/1) ... [2023-12-25 10:10:46,143 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b3eaec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:10:46, skipping insertion in model container [2023-12-25 10:10:46,143 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 10:10:46" (1/1) ... [2023-12-25 10:10:46,214 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 10:10:46,584 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[16948,16961] [2023-12-25 10:10:46,621 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[23372,23385] [2023-12-25 10:10:46,633 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26559,26572] [2023-12-25 10:10:46,651 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[29535,29548] [2023-12-25 10:10:46,663 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33298,33311] [2023-12-25 10:10:46,673 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[36350,36363] [2023-12-25 10:10:46,684 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[39535,39548] [2023-12-25 10:10:46,694 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42506,42519] [2023-12-25 10:10:46,705 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[45890,45903] [2023-12-25 10:10:46,715 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[48876,48889] [2023-12-25 10:10:46,725 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[52025,52038] [2023-12-25 10:10:46,764 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 10:10:46,781 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 10:10:46,889 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[16948,16961] [2023-12-25 10:10:46,915 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[23372,23385] [2023-12-25 10:10:46,927 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26559,26572] [2023-12-25 10:10:46,940 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[29535,29548] [2023-12-25 10:10:46,951 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33298,33311] [2023-12-25 10:10:46,959 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[36350,36363] [2023-12-25 10:10:46,968 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[39535,39548] [2023-12-25 10:10:46,982 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42506,42519] [2023-12-25 10:10:46,991 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[45890,45903] [2023-12-25 10:10:47,001 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[48876,48889] [2023-12-25 10:10:47,010 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[52025,52038] [2023-12-25 10:10:47,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 10:10:47,077 INFO L206 MainTranslator]: Completed translation [2023-12-25 10:10:47,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:10:47 WrapperNode [2023-12-25 10:10:47,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 10:10:47,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 10:10:47,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 10:10:47,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 10:10:47,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:10:47" (1/1) ... [2023-12-25 10:10:47,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:10:47" (1/1) ... [2023-12-25 10:10:47,210 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2747 [2023-12-25 10:10:47,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 10:10:47,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 10:10:47,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 10:10:47,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 10:10:47,222 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:10:47" (1/1) ... [2023-12-25 10:10:47,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:10:47" (1/1) ... [2023-12-25 10:10:47,239 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:10:47" (1/1) ... [2023-12-25 10:10:47,267 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]. [2023-12-25 10:10:47,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:10:47" (1/1) ... [2023-12-25 10:10:47,268 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:10:47" (1/1) ... [2023-12-25 10:10:47,293 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:10:47" (1/1) ... [2023-12-25 10:10:47,315 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:10:47" (1/1) ... [2023-12-25 10:10:47,322 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:10:47" (1/1) ... [2023-12-25 10:10:47,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:10:47" (1/1) ... [2023-12-25 10:10:47,350 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 10:10:47,352 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 10:10:47,352 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 10:10:47,352 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 10:10:47,353 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:10:47" (1/1) ... [2023-12-25 10:10:47,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 10:10:47,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 10:10:47,380 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-25 10:10:47,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-25 10:10:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 10:10:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 10:10:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 10:10:47,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 10:10:47,569 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 10:10:47,571 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 10:10:49,120 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 10:10:49,165 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 10:10:49,165 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-25 10:10:49,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 10:10:49 BoogieIcfgContainer [2023-12-25 10:10:49,165 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 10:10:49,167 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 10:10:49,168 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 10:10:49,170 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 10:10:49,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 10:10:46" (1/3) ... [2023-12-25 10:10:49,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18678be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 10:10:49, skipping insertion in model container [2023-12-25 10:10:49,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:10:47" (2/3) ... [2023-12-25 10:10:49,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18678be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 10:10:49, skipping insertion in model container [2023-12-25 10:10:49,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 10:10:49" (3/3) ... [2023-12-25 10:10:49,172 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-25 10:10:49,187 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 10:10:49,187 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-12-25 10:10:49,249 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 10:10:49,255 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;@42b14585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 10:10:49,255 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-12-25 10:10:49,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 535 states, 523 states have (on average 1.8336520076481835) internal successors, (959), 534 states have internal predecessors, (959), 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) [2023-12-25 10:10:49,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-25 10:10:49,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:10:49,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:10:49,281 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:10:49,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:10:49,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1216794109, now seen corresponding path program 1 times [2023-12-25 10:10:49,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:10:49,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454517188] [2023-12-25 10:10:49,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:10:49,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:10:49,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:10:49,300 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:10:49,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 10:10:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:10:49,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:10:49,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:10:49,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:10:49,888 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:10:49,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:10:49,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454517188] [2023-12-25 10:10:49,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454517188] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:10:49,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:10:49,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 10:10:49,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722835362] [2023-12-25 10:10:49,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:10:49,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:10:49,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:10:49,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:10:49,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:10:49,923 INFO L87 Difference]: Start difference. First operand has 535 states, 523 states have (on average 1.8336520076481835) internal successors, (959), 534 states have internal predecessors, (959), 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 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2023-12-25 10:10:50,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:10:50,430 INFO L93 Difference]: Finished difference Result 671 states and 1171 transitions. [2023-12-25 10:10:50,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 10:10:50,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2023-12-25 10:10:50,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:10:50,446 INFO L225 Difference]: With dead ends: 671 [2023-12-25 10:10:50,446 INFO L226 Difference]: Without dead ends: 387 [2023-12-25 10:10:50,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:10:50,458 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 1922 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1922 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 10:10:50,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1922 Valid, 424 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 10:10:50,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2023-12-25 10:10:50,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2023-12-25 10:10:50,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 376 states have (on average 1.297872340425532) internal successors, (488), 386 states have internal predecessors, (488), 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) [2023-12-25 10:10:50,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 488 transitions. [2023-12-25 10:10:50,531 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 488 transitions. Word has length 58 [2023-12-25 10:10:50,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:10:50,532 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 488 transitions. [2023-12-25 10:10:50,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2023-12-25 10:10:50,532 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 488 transitions. [2023-12-25 10:10:50,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-25 10:10:50,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:10:50,535 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] [2023-12-25 10:10:50,545 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 [2023-12-25 10:10:50,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:10:50,745 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:10:50,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:10:50,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1040787502, now seen corresponding path program 1 times [2023-12-25 10:10:50,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:10:50,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937456919] [2023-12-25 10:10:50,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:10:50,747 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:10:50,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:10:50,748 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:10:50,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 10:10:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:10:50,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:10:50,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:10:51,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:10:51,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:10:51,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:10:51,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937456919] [2023-12-25 10:10:51,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937456919] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:10:51,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:10:51,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 10:10:51,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711408403] [2023-12-25 10:10:51,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:10:51,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:10:51,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:10:51,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:10:51,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:10:51,155 INFO L87 Difference]: Start difference. First operand 387 states and 488 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2023-12-25 10:10:51,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:10:51,395 INFO L93 Difference]: Finished difference Result 485 states and 610 transitions. [2023-12-25 10:10:51,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 10:10:51,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2023-12-25 10:10:51,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:10:51,397 INFO L225 Difference]: With dead ends: 485 [2023-12-25 10:10:51,397 INFO L226 Difference]: Without dead ends: 285 [2023-12-25 10:10:51,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:10:51,399 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 665 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 10:10:51,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 215 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 10:10:51,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-12-25 10:10:51,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2023-12-25 10:10:51,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 274 states have (on average 1.302919708029197) internal successors, (357), 284 states have internal predecessors, (357), 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) [2023-12-25 10:10:51,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 357 transitions. [2023-12-25 10:10:51,412 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 357 transitions. Word has length 58 [2023-12-25 10:10:51,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:10:51,412 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 357 transitions. [2023-12-25 10:10:51,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2023-12-25 10:10:51,412 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 357 transitions. [2023-12-25 10:10:51,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-25 10:10:51,413 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:10:51,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:10:51,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 10:10:51,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:10:51,617 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:10:51,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:10:51,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1884229362, now seen corresponding path program 1 times [2023-12-25 10:10:51,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:10:51,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206978313] [2023-12-25 10:10:51,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:10:51,619 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:10:51,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:10:51,620 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:10:51,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 10:10:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:10:51,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:10:51,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:10:51,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:10:51,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:10:51,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:10:51,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206978313] [2023-12-25 10:10:51,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206978313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:10:51,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:10:51,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 10:10:51,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737123415] [2023-12-25 10:10:51,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:10:51,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:10:51,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:10:51,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:10:51,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:10:51,974 INFO L87 Difference]: Start difference. First operand 285 states and 357 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2023-12-25 10:10:52,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:10:52,325 INFO L93 Difference]: Finished difference Result 547 states and 706 transitions. [2023-12-25 10:10:52,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 10:10:52,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2023-12-25 10:10:52,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:10:52,328 INFO L225 Difference]: With dead ends: 547 [2023-12-25 10:10:52,328 INFO L226 Difference]: Without dead ends: 386 [2023-12-25 10:10:52,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:10:52,329 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 1250 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 10:10:52,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1250 Valid, 298 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 10:10:52,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2023-12-25 10:10:52,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 344. [2023-12-25 10:10:52,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 333 states have (on average 1.3753753753753755) internal successors, (458), 343 states have internal predecessors, (458), 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) [2023-12-25 10:10:52,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 458 transitions. [2023-12-25 10:10:52,337 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 458 transitions. Word has length 58 [2023-12-25 10:10:52,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:10:52,337 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 458 transitions. [2023-12-25 10:10:52,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2023-12-25 10:10:52,338 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 458 transitions. [2023-12-25 10:10:52,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-25 10:10:52,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:10:52,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:10:52,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 10:10:52,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:10:52,542 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:10:52,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:10:52,543 INFO L85 PathProgramCache]: Analyzing trace with hash -2118690272, now seen corresponding path program 1 times [2023-12-25 10:10:52,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:10:52,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769490404] [2023-12-25 10:10:52,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:10:52,544 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:10:52,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:10:52,545 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:10:52,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 10:10:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:10:52,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:10:52,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:10:52,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:10:52,843 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:10:52,843 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:10:52,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769490404] [2023-12-25 10:10:52,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769490404] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:10:52,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:10:52,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 10:10:52,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522489871] [2023-12-25 10:10:52,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:10:52,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:10:52,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:10:52,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:10:52,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:10:52,845 INFO L87 Difference]: Start difference. First operand 344 states and 458 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2023-12-25 10:10:53,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:10:53,063 INFO L93 Difference]: Finished difference Result 529 states and 715 transitions. [2023-12-25 10:10:53,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 10:10:53,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 59 [2023-12-25 10:10:53,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:10:53,065 INFO L225 Difference]: With dead ends: 529 [2023-12-25 10:10:53,066 INFO L226 Difference]: Without dead ends: 336 [2023-12-25 10:10:53,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:10:53,067 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 558 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 10:10:53,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 189 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 10:10:53,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-12-25 10:10:53,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2023-12-25 10:10:53,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3753846153846154) internal successors, (447), 335 states have internal predecessors, (447), 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) [2023-12-25 10:10:53,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 447 transitions. [2023-12-25 10:10:53,074 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 447 transitions. Word has length 59 [2023-12-25 10:10:53,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:10:53,074 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 447 transitions. [2023-12-25 10:10:53,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2023-12-25 10:10:53,075 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 447 transitions. [2023-12-25 10:10:53,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-25 10:10:53,075 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:10:53,076 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:10:53,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 10:10:53,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:10:53,279 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:10:53,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:10:53,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1322654244, now seen corresponding path program 1 times [2023-12-25 10:10:53,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:10:53,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [896013280] [2023-12-25 10:10:53,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:10:53,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:10:53,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:10:53,281 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:10:53,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 10:10:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:10:53,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:10:53,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:10:53,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:10:53,907 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:10:53,907 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:10:53,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [896013280] [2023-12-25 10:10:53,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [896013280] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:10:53,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:10:53,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:10:53,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789781932] [2023-12-25 10:10:53,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:10:53,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:10:53,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:10:53,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:10:53,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:10:53,911 INFO L87 Difference]: Start difference. First operand 336 states and 447 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 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) [2023-12-25 10:10:54,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:10:54,828 INFO L93 Difference]: Finished difference Result 560 states and 781 transitions. [2023-12-25 10:10:54,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:10:54,832 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 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 60 [2023-12-25 10:10:54,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:10:54,833 INFO L225 Difference]: With dead ends: 560 [2023-12-25 10:10:54,833 INFO L226 Difference]: Without dead ends: 442 [2023-12-25 10:10:54,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 10:10:54,834 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 783 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 10:10:54,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 740 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 10:10:54,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-12-25 10:10:54,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 336. [2023-12-25 10:10:54,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3723076923076922) internal successors, (446), 335 states have internal predecessors, (446), 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) [2023-12-25 10:10:54,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 446 transitions. [2023-12-25 10:10:54,841 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 446 transitions. Word has length 60 [2023-12-25 10:10:54,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:10:54,842 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 446 transitions. [2023-12-25 10:10:54,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 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) [2023-12-25 10:10:54,842 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 446 transitions. [2023-12-25 10:10:54,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-25 10:10:54,843 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:10:54,843 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:10:54,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-25 10:10:55,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:10:55,048 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:10:55,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:10:55,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1579426260, now seen corresponding path program 1 times [2023-12-25 10:10:55,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:10:55,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972975260] [2023-12-25 10:10:55,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:10:55,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:10:55,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:10:55,051 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:10:55,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 10:10:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:10:55,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:10:55,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:10:55,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:10:55,627 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:10:55,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:10:55,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972975260] [2023-12-25 10:10:55,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972975260] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:10:55,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:10:55,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:10:55,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566457283] [2023-12-25 10:10:55,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:10:55,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:10:55,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:10:55,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:10:55,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:10:55,630 INFO L87 Difference]: Start difference. First operand 336 states and 446 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 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) [2023-12-25 10:10:56,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:10:56,754 INFO L93 Difference]: Finished difference Result 626 states and 847 transitions. [2023-12-25 10:10:56,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 10:10:56,755 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 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 60 [2023-12-25 10:10:56,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:10:56,757 INFO L225 Difference]: With dead ends: 626 [2023-12-25 10:10:56,757 INFO L226 Difference]: Without dead ends: 486 [2023-12-25 10:10:56,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 10:10:56,758 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 1530 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 10:10:56,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1530 Valid, 872 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 10:10:56,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2023-12-25 10:10:56,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 336. [2023-12-25 10:10:56,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3692307692307693) internal successors, (445), 335 states have internal predecessors, (445), 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) [2023-12-25 10:10:56,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 445 transitions. [2023-12-25 10:10:56,766 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 445 transitions. Word has length 60 [2023-12-25 10:10:56,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:10:56,767 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 445 transitions. [2023-12-25 10:10:56,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 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) [2023-12-25 10:10:56,767 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 445 transitions. [2023-12-25 10:10:56,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-25 10:10:56,768 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:10:56,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:10:56,774 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 [2023-12-25 10:10:56,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:10:56,971 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:10:56,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:10:56,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1013492058, now seen corresponding path program 1 times [2023-12-25 10:10:56,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:10:56,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233523049] [2023-12-25 10:10:56,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:10:56,972 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:10:56,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:10:56,974 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:10:56,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 10:10:57,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:10:57,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 10:10:57,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:10:57,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:10:57,367 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:10:57,367 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:10:57,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233523049] [2023-12-25 10:10:57,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233523049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:10:57,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:10:57,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 10:10:57,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799337228] [2023-12-25 10:10:57,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:10:57,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 10:10:57,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:10:57,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 10:10:57,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 10:10:57,369 INFO L87 Difference]: Start difference. First operand 336 states and 445 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 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) [2023-12-25 10:10:57,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:10:57,836 INFO L93 Difference]: Finished difference Result 521 states and 700 transitions. [2023-12-25 10:10:57,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 10:10:57,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 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 60 [2023-12-25 10:10:57,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:10:57,840 INFO L225 Difference]: With dead ends: 521 [2023-12-25 10:10:57,840 INFO L226 Difference]: Without dead ends: 336 [2023-12-25 10:10:57,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-25 10:10:57,841 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 1098 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 10:10:57,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1098 Valid, 348 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 10:10:57,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-12-25 10:10:57,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2023-12-25 10:10:57,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.366153846153846) internal successors, (444), 335 states have internal predecessors, (444), 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) [2023-12-25 10:10:57,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 444 transitions. [2023-12-25 10:10:57,848 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 444 transitions. Word has length 60 [2023-12-25 10:10:57,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:10:57,848 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 444 transitions. [2023-12-25 10:10:57,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 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) [2023-12-25 10:10:57,848 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 444 transitions. [2023-12-25 10:10:57,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 10:10:57,849 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:10:57,849 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] [2023-12-25 10:10:57,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 10:10:58,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:10:58,053 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:10:58,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:10:58,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1005199851, now seen corresponding path program 1 times [2023-12-25 10:10:58,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:10:58,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182932568] [2023-12-25 10:10:58,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:10:58,054 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:10:58,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:10:58,055 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:10:58,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 10:10:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:10:58,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:10:58,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:10:58,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:10:58,602 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:10:58,602 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:10:58,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182932568] [2023-12-25 10:10:58,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182932568] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:10:58,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:10:58,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:10:58,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102243749] [2023-12-25 10:10:58,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:10:58,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:10:58,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:10:58,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:10:58,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:10:58,604 INFO L87 Difference]: Start difference. First operand 336 states and 444 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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) [2023-12-25 10:10:59,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:10:59,423 INFO L93 Difference]: Finished difference Result 459 states and 622 transitions. [2023-12-25 10:10:59,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:10:59,424 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2023-12-25 10:10:59,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:10:59,426 INFO L225 Difference]: With dead ends: 459 [2023-12-25 10:10:59,426 INFO L226 Difference]: Without dead ends: 442 [2023-12-25 10:10:59,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 10:10:59,427 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 985 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 10:10:59,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 781 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 10:10:59,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-12-25 10:10:59,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 336. [2023-12-25 10:10:59,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.36) internal successors, (442), 335 states have internal predecessors, (442), 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) [2023-12-25 10:10:59,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 442 transitions. [2023-12-25 10:10:59,438 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 442 transitions. Word has length 62 [2023-12-25 10:10:59,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:10:59,438 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 442 transitions. [2023-12-25 10:10:59,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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) [2023-12-25 10:10:59,438 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 442 transitions. [2023-12-25 10:10:59,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 10:10:59,439 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:10:59,439 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] [2023-12-25 10:10:59,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-25 10:10:59,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:10:59,643 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:10:59,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:10:59,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1319054290, now seen corresponding path program 1 times [2023-12-25 10:10:59,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:10:59,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084777047] [2023-12-25 10:10:59,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:10:59,643 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:10:59,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:10:59,644 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:10:59,645 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 (10)] Waiting until timeout for monitored process [2023-12-25 10:10:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:10:59,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:10:59,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:00,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:00,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:00,166 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:00,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084777047] [2023-12-25 10:11:00,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084777047] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:00,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:00,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:11:00,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501309568] [2023-12-25 10:11:00,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:00,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:11:00,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:00,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:11:00,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:11:00,168 INFO L87 Difference]: Start difference. First operand 336 states and 442 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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) [2023-12-25 10:11:00,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:00,933 INFO L93 Difference]: Finished difference Result 447 states and 606 transitions. [2023-12-25 10:11:00,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:11:00,934 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2023-12-25 10:11:00,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:00,935 INFO L225 Difference]: With dead ends: 447 [2023-12-25 10:11:00,935 INFO L226 Difference]: Without dead ends: 442 [2023-12-25 10:11:00,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 10:11:00,936 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 989 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:00,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 772 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 10:11:00,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-12-25 10:11:00,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 336. [2023-12-25 10:11:00,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.353846153846154) internal successors, (440), 335 states have internal predecessors, (440), 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) [2023-12-25 10:11:00,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 440 transitions. [2023-12-25 10:11:00,944 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 440 transitions. Word has length 62 [2023-12-25 10:11:00,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:00,944 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 440 transitions. [2023-12-25 10:11:00,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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) [2023-12-25 10:11:00,944 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 440 transitions. [2023-12-25 10:11:00,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 10:11:00,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:00,945 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] [2023-12-25 10:11:00,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:01,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:01,155 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:01,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:01,155 INFO L85 PathProgramCache]: Analyzing trace with hash -806955644, now seen corresponding path program 1 times [2023-12-25 10:11:01,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:01,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124675490] [2023-12-25 10:11:01,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:01,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:01,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:01,157 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:01,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 10:11:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:01,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:11:01,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:01,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:01,627 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:01,627 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:01,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124675490] [2023-12-25 10:11:01,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124675490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:01,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:01,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:11:01,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599285654] [2023-12-25 10:11:01,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:01,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:11:01,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:01,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:11:01,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:11:01,629 INFO L87 Difference]: Start difference. First operand 336 states and 440 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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) [2023-12-25 10:11:02,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:02,611 INFO L93 Difference]: Finished difference Result 656 states and 880 transitions. [2023-12-25 10:11:02,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 10:11:02,611 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2023-12-25 10:11:02,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:02,613 INFO L225 Difference]: With dead ends: 656 [2023-12-25 10:11:02,613 INFO L226 Difference]: Without dead ends: 486 [2023-12-25 10:11:02,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 10:11:02,614 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 1213 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:02,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1213 Valid, 859 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 10:11:02,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2023-12-25 10:11:02,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 336. [2023-12-25 10:11:02,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3476923076923077) internal successors, (438), 335 states have internal predecessors, (438), 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) [2023-12-25 10:11:02,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 438 transitions. [2023-12-25 10:11:02,621 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 438 transitions. Word has length 62 [2023-12-25 10:11:02,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:02,621 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 438 transitions. [2023-12-25 10:11:02,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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) [2023-12-25 10:11:02,622 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 438 transitions. [2023-12-25 10:11:02,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 10:11:02,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:02,622 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] [2023-12-25 10:11:02,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:02,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:02,826 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:02,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:02,826 INFO L85 PathProgramCache]: Analyzing trace with hash 2033918897, now seen corresponding path program 1 times [2023-12-25 10:11:02,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:02,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [510055226] [2023-12-25 10:11:02,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:02,827 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:02,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:02,828 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:02,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 10:11:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:02,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:11:02,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:03,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:03,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:03,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:03,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [510055226] [2023-12-25 10:11:03,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [510055226] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:03,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:03,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:11:03,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106414217] [2023-12-25 10:11:03,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:03,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:11:03,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:03,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:11:03,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:11:03,340 INFO L87 Difference]: Start difference. First operand 336 states and 438 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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) [2023-12-25 10:11:04,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:04,044 INFO L93 Difference]: Finished difference Result 565 states and 777 transitions. [2023-12-25 10:11:04,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:11:04,044 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2023-12-25 10:11:04,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:04,046 INFO L225 Difference]: With dead ends: 565 [2023-12-25 10:11:04,046 INFO L226 Difference]: Without dead ends: 442 [2023-12-25 10:11:04,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 10:11:04,047 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 1081 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:04,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 688 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 10:11:04,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-12-25 10:11:04,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 336. [2023-12-25 10:11:04,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3446153846153845) internal successors, (437), 335 states have internal predecessors, (437), 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) [2023-12-25 10:11:04,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 437 transitions. [2023-12-25 10:11:04,060 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 437 transitions. Word has length 62 [2023-12-25 10:11:04,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:04,061 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 437 transitions. [2023-12-25 10:11:04,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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) [2023-12-25 10:11:04,061 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 437 transitions. [2023-12-25 10:11:04,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 10:11:04,061 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:04,062 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] [2023-12-25 10:11:04,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:04,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:04,267 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:04,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:04,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1443459928, now seen corresponding path program 1 times [2023-12-25 10:11:04,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:04,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [848124059] [2023-12-25 10:11:04,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:04,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:04,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:04,269 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:04,270 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 (13)] Waiting until timeout for monitored process [2023-12-25 10:11:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:04,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:11:04,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:04,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:04,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:04,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:04,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [848124059] [2023-12-25 10:11:04,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [848124059] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:04,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:04,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:11:04,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859774432] [2023-12-25 10:11:04,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:04,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:11:04,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:04,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:11:04,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:11:04,810 INFO L87 Difference]: Start difference. First operand 336 states and 437 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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) [2023-12-25 10:11:05,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:05,601 INFO L93 Difference]: Finished difference Result 553 states and 762 transitions. [2023-12-25 10:11:05,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:11:05,601 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2023-12-25 10:11:05,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:05,603 INFO L225 Difference]: With dead ends: 553 [2023-12-25 10:11:05,603 INFO L226 Difference]: Without dead ends: 442 [2023-12-25 10:11:05,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 10:11:05,604 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 735 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:05,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 771 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 10:11:05,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-12-25 10:11:05,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 336. [2023-12-25 10:11:05,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3415384615384616) internal successors, (436), 335 states have internal predecessors, (436), 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) [2023-12-25 10:11:05,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 436 transitions. [2023-12-25 10:11:05,612 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 436 transitions. Word has length 62 [2023-12-25 10:11:05,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:05,613 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 436 transitions. [2023-12-25 10:11:05,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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) [2023-12-25 10:11:05,614 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 436 transitions. [2023-12-25 10:11:05,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 10:11:05,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:05,614 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] [2023-12-25 10:11:05,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:05,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:05,821 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:05,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:05,822 INFO L85 PathProgramCache]: Analyzing trace with hash 823720425, now seen corresponding path program 1 times [2023-12-25 10:11:05,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:05,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32050187] [2023-12-25 10:11:05,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:05,822 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:05,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:05,823 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:05,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 10:11:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:05,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:11:05,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:06,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:06,343 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:06,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:06,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32050187] [2023-12-25 10:11:06,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32050187] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:06,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:06,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:11:06,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206897347] [2023-12-25 10:11:06,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:06,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:11:06,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:06,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:11:06,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:11:06,344 INFO L87 Difference]: Start difference. First operand 336 states and 436 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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) [2023-12-25 10:11:07,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:07,123 INFO L93 Difference]: Finished difference Result 447 states and 600 transitions. [2023-12-25 10:11:07,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:11:07,123 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2023-12-25 10:11:07,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:07,125 INFO L225 Difference]: With dead ends: 447 [2023-12-25 10:11:07,125 INFO L226 Difference]: Without dead ends: 442 [2023-12-25 10:11:07,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 10:11:07,126 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 732 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:07,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 772 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 10:11:07,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-12-25 10:11:07,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 336. [2023-12-25 10:11:07,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3384615384615384) internal successors, (435), 335 states have internal predecessors, (435), 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) [2023-12-25 10:11:07,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 435 transitions. [2023-12-25 10:11:07,133 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 435 transitions. Word has length 62 [2023-12-25 10:11:07,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:07,133 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 435 transitions. [2023-12-25 10:11:07,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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) [2023-12-25 10:11:07,133 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 435 transitions. [2023-12-25 10:11:07,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 10:11:07,134 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:07,134 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] [2023-12-25 10:11:07,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:07,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:07,337 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:07,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:07,337 INFO L85 PathProgramCache]: Analyzing trace with hash 2020699465, now seen corresponding path program 1 times [2023-12-25 10:11:07,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:07,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578229920] [2023-12-25 10:11:07,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:07,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:07,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:07,340 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:07,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 10:11:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:07,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:11:07,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:07,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:07,849 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:07,849 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:07,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578229920] [2023-12-25 10:11:07,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578229920] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:07,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:07,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:11:07,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974561048] [2023-12-25 10:11:07,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:07,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:11:07,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:07,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:11:07,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:11:07,850 INFO L87 Difference]: Start difference. First operand 336 states and 435 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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) [2023-12-25 10:11:08,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:08,577 INFO L93 Difference]: Finished difference Result 550 states and 757 transitions. [2023-12-25 10:11:08,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:11:08,578 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2023-12-25 10:11:08,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:08,579 INFO L225 Difference]: With dead ends: 550 [2023-12-25 10:11:08,579 INFO L226 Difference]: Without dead ends: 442 [2023-12-25 10:11:08,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 10:11:08,579 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 752 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:08,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 739 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 10:11:08,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-12-25 10:11:08,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 336. [2023-12-25 10:11:08,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3353846153846154) internal successors, (434), 335 states have internal predecessors, (434), 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) [2023-12-25 10:11:08,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 434 transitions. [2023-12-25 10:11:08,586 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 434 transitions. Word has length 62 [2023-12-25 10:11:08,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:08,587 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 434 transitions. [2023-12-25 10:11:08,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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) [2023-12-25 10:11:08,587 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 434 transitions. [2023-12-25 10:11:08,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 10:11:08,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:08,588 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] [2023-12-25 10:11:08,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-25 10:11:08,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:08,791 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:08,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:08,792 INFO L85 PathProgramCache]: Analyzing trace with hash -29192250, now seen corresponding path program 1 times [2023-12-25 10:11:08,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:08,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291900874] [2023-12-25 10:11:08,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:08,792 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:08,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:08,793 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:08,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 10:11:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:08,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 10:11:08,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:09,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:09,405 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:09,405 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:09,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291900874] [2023-12-25 10:11:09,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1291900874] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:09,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:09,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 10:11:09,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318301859] [2023-12-25 10:11:09,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:09,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 10:11:09,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:09,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 10:11:09,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:11:09,408 INFO L87 Difference]: Start difference. First operand 336 states and 434 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 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) [2023-12-25 10:11:09,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:09,821 INFO L93 Difference]: Finished difference Result 602 states and 834 transitions. [2023-12-25 10:11:09,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 10:11:09,821 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 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 [2023-12-25 10:11:09,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:09,823 INFO L225 Difference]: With dead ends: 602 [2023-12-25 10:11:09,823 INFO L226 Difference]: Without dead ends: 454 [2023-12-25 10:11:09,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2023-12-25 10:11:09,824 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 712 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:09,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 1391 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 10:11:09,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2023-12-25 10:11:09,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 294. [2023-12-25 10:11:09,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 286 states have (on average 1.3356643356643356) internal successors, (382), 293 states have internal predecessors, (382), 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) [2023-12-25 10:11:09,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 382 transitions. [2023-12-25 10:11:09,830 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 382 transitions. Word has length 64 [2023-12-25 10:11:09,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:09,830 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 382 transitions. [2023-12-25 10:11:09,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 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) [2023-12-25 10:11:09,830 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 382 transitions. [2023-12-25 10:11:09,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 10:11:09,831 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:09,831 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] [2023-12-25 10:11:09,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:10,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:10,034 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:10,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:10,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1085248927, now seen corresponding path program 1 times [2023-12-25 10:11:10,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:10,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765589439] [2023-12-25 10:11:10,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:10,035 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:10,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:10,036 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:10,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 10:11:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:10,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-25 10:11:10,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:12,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:12,441 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:12,441 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:12,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765589439] [2023-12-25 10:11:12,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [765589439] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:12,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:12,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-25 10:11:12,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854178505] [2023-12-25 10:11:12,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:12,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-25 10:11:12,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:12,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-25 10:11:12,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2023-12-25 10:11:12,443 INFO L87 Difference]: Start difference. First operand 294 states and 382 transitions. Second operand has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 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) [2023-12-25 10:11:18,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:18,774 INFO L93 Difference]: Finished difference Result 730 states and 988 transitions. [2023-12-25 10:11:18,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-25 10:11:18,774 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 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 [2023-12-25 10:11:18,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:18,776 INFO L225 Difference]: With dead ends: 730 [2023-12-25 10:11:18,776 INFO L226 Difference]: Without dead ends: 608 [2023-12-25 10:11:18,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=196, Invalid=734, Unknown=0, NotChecked=0, Total=930 [2023-12-25 10:11:18,777 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 1092 mSDsluCounter, 3927 mSDsCounter, 0 mSdLazyCounter, 2474 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 4345 SdHoareTripleChecker+Invalid, 2474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:18,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 4345 Invalid, 2474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2474 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-12-25 10:11:18,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2023-12-25 10:11:18,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 300. [2023-12-25 10:11:18,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 292 states have (on average 1.3356164383561644) internal successors, (390), 299 states have internal predecessors, (390), 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) [2023-12-25 10:11:18,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 390 transitions. [2023-12-25 10:11:18,783 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 390 transitions. Word has length 64 [2023-12-25 10:11:18,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:18,783 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 390 transitions. [2023-12-25 10:11:18,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 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) [2023-12-25 10:11:18,784 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 390 transitions. [2023-12-25 10:11:18,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 10:11:18,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:18,784 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] [2023-12-25 10:11:18,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:18,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:18,987 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:18,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:18,988 INFO L85 PathProgramCache]: Analyzing trace with hash 632833740, now seen corresponding path program 1 times [2023-12-25 10:11:18,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:18,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703036332] [2023-12-25 10:11:18,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:18,988 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:18,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:18,989 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:18,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 10:11:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:19,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 10:11:19,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:19,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:19,847 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:19,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:19,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [703036332] [2023-12-25 10:11:19,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [703036332] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:19,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:19,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-25 10:11:19,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507715453] [2023-12-25 10:11:19,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:19,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-25 10:11:19,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:19,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-25 10:11:19,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-25 10:11:19,850 INFO L87 Difference]: Start difference. First operand 300 states and 390 transitions. Second operand has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 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) [2023-12-25 10:11:20,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:20,449 INFO L93 Difference]: Finished difference Result 672 states and 928 transitions. [2023-12-25 10:11:20,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 10:11:20,450 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 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 [2023-12-25 10:11:20,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:20,451 INFO L225 Difference]: With dead ends: 672 [2023-12-25 10:11:20,451 INFO L226 Difference]: Without dead ends: 503 [2023-12-25 10:11:20,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2023-12-25 10:11:20,452 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 783 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:20,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 1138 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 10:11:20,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2023-12-25 10:11:20,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 237. [2023-12-25 10:11:20,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 233 states have (on average 1.3433476394849786) internal successors, (313), 236 states have internal predecessors, (313), 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) [2023-12-25 10:11:20,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 313 transitions. [2023-12-25 10:11:20,458 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 313 transitions. Word has length 64 [2023-12-25 10:11:20,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:20,458 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 313 transitions. [2023-12-25 10:11:20,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 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) [2023-12-25 10:11:20,458 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 313 transitions. [2023-12-25 10:11:20,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-25 10:11:20,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:20,459 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] [2023-12-25 10:11:20,464 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 [2023-12-25 10:11:20,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:20,665 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:20,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:20,665 INFO L85 PathProgramCache]: Analyzing trace with hash -776132116, now seen corresponding path program 1 times [2023-12-25 10:11:20,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:20,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604572516] [2023-12-25 10:11:20,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:20,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:20,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:20,666 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:20,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 10:11:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:20,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-25 10:11:20,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:21,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:21,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:21,778 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:21,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604572516] [2023-12-25 10:11:21,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604572516] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:21,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:21,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-25 10:11:21,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305411606] [2023-12-25 10:11:21,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:21,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 10:11:21,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:21,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 10:11:21,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-25 10:11:21,780 INFO L87 Difference]: Start difference. First operand 237 states and 313 transitions. Second operand has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 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) [2023-12-25 10:11:22,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:22,852 INFO L93 Difference]: Finished difference Result 625 states and 876 transitions. [2023-12-25 10:11:22,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 10:11:22,853 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 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 [2023-12-25 10:11:22,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:22,854 INFO L225 Difference]: With dead ends: 625 [2023-12-25 10:11:22,854 INFO L226 Difference]: Without dead ends: 497 [2023-12-25 10:11:22,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2023-12-25 10:11:22,855 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 598 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 1956 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:22,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 1956 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 10:11:22,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-12-25 10:11:22,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 209. [2023-12-25 10:11:22,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 207 states have (on average 1.328502415458937) internal successors, (275), 208 states have internal predecessors, (275), 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) [2023-12-25 10:11:22,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 275 transitions. [2023-12-25 10:11:22,860 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 275 transitions. Word has length 65 [2023-12-25 10:11:22,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:22,861 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 275 transitions. [2023-12-25 10:11:22,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 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) [2023-12-25 10:11:22,861 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 275 transitions. [2023-12-25 10:11:22,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-25 10:11:22,861 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:22,862 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] [2023-12-25 10:11:22,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:23,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:23,066 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:23,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:23,066 INFO L85 PathProgramCache]: Analyzing trace with hash 2125205281, now seen corresponding path program 1 times [2023-12-25 10:11:23,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:23,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [585223433] [2023-12-25 10:11:23,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:23,067 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:23,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:23,068 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:23,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 10:11:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:23,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:11:23,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:23,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:23,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:23,551 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:23,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [585223433] [2023-12-25 10:11:23,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [585223433] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:23,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:23,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:11:23,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319618835] [2023-12-25 10:11:23,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:23,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:11:23,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:23,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:11:23,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:11:23,553 INFO L87 Difference]: Start difference. First operand 209 states and 275 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 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) [2023-12-25 10:11:23,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:23,907 INFO L93 Difference]: Finished difference Result 345 states and 470 transitions. [2023-12-25 10:11:23,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:11:23,908 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 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 [2023-12-25 10:11:23,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:23,908 INFO L225 Difference]: With dead ends: 345 [2023-12-25 10:11:23,909 INFO L226 Difference]: Without dead ends: 209 [2023-12-25 10:11:23,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 10:11:23,909 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 444 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:23,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 278 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 10:11:23,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-12-25 10:11:23,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2023-12-25 10:11:23,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 207 states have (on average 1.318840579710145) internal successors, (273), 208 states have internal predecessors, (273), 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) [2023-12-25 10:11:23,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 273 transitions. [2023-12-25 10:11:23,913 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 273 transitions. Word has length 65 [2023-12-25 10:11:23,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:23,913 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 273 transitions. [2023-12-25 10:11:23,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 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) [2023-12-25 10:11:23,914 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 273 transitions. [2023-12-25 10:11:23,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-25 10:11:23,914 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:23,914 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] [2023-12-25 10:11:23,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:24,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:24,120 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:24,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:24,121 INFO L85 PathProgramCache]: Analyzing trace with hash 846749532, now seen corresponding path program 1 times [2023-12-25 10:11:24,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:24,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53665665] [2023-12-25 10:11:24,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:24,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:24,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:24,122 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:24,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 10:11:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:24,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-25 10:11:24,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:28,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:28,967 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:28,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:28,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53665665] [2023-12-25 10:11:28,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [53665665] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:28,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:28,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-25 10:11:28,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230554999] [2023-12-25 10:11:28,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:28,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-25 10:11:28,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:28,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-25 10:11:28,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2023-12-25 10:11:28,968 INFO L87 Difference]: Start difference. First operand 209 states and 273 transitions. Second operand has 22 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 22 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) [2023-12-25 10:11:40,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:40,619 INFO L93 Difference]: Finished difference Result 456 states and 631 transitions. [2023-12-25 10:11:40,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-25 10:11:40,619 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 22 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 [2023-12-25 10:11:40,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:40,620 INFO L225 Difference]: With dead ends: 456 [2023-12-25 10:11:40,620 INFO L226 Difference]: Without dead ends: 337 [2023-12-25 10:11:40,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=177, Invalid=879, Unknown=0, NotChecked=0, Total=1056 [2023-12-25 10:11:40,621 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 380 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 1487 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:40,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 1487 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2023-12-25 10:11:40,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2023-12-25 10:11:40,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 220. [2023-12-25 10:11:40,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 218 states have (on average 1.311926605504587) internal successors, (286), 219 states have internal predecessors, (286), 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) [2023-12-25 10:11:40,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 286 transitions. [2023-12-25 10:11:40,626 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 286 transitions. Word has length 67 [2023-12-25 10:11:40,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:40,626 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 286 transitions. [2023-12-25 10:11:40,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 22 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) [2023-12-25 10:11:40,626 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 286 transitions. [2023-12-25 10:11:40,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-25 10:11:40,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:40,627 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] [2023-12-25 10:11:40,630 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 [2023-12-25 10:11:40,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:40,830 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:40,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:40,831 INFO L85 PathProgramCache]: Analyzing trace with hash 766856175, now seen corresponding path program 1 times [2023-12-25 10:11:40,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:40,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685616716] [2023-12-25 10:11:40,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:40,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:40,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:40,832 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:40,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 10:11:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:40,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 10:11:40,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:41,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:41,414 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:41,414 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:41,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685616716] [2023-12-25 10:11:41,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [685616716] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:41,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:41,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 10:11:41,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854485084] [2023-12-25 10:11:41,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:41,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 10:11:41,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:41,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 10:11:41,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-25 10:11:41,415 INFO L87 Difference]: Start difference. First operand 220 states and 286 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 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) [2023-12-25 10:11:41,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:41,799 INFO L93 Difference]: Finished difference Result 352 states and 478 transitions. [2023-12-25 10:11:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 10:11:41,799 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 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 [2023-12-25 10:11:41,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:41,800 INFO L225 Difference]: With dead ends: 352 [2023-12-25 10:11:41,800 INFO L226 Difference]: Without dead ends: 346 [2023-12-25 10:11:41,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2023-12-25 10:11:41,801 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 487 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:41,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 897 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 10:11:41,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2023-12-25 10:11:41,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 213. [2023-12-25 10:11:41,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 212 states have internal predecessors, (278), 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) [2023-12-25 10:11:41,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 278 transitions. [2023-12-25 10:11:41,805 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 278 transitions. Word has length 68 [2023-12-25 10:11:41,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:41,805 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 278 transitions. [2023-12-25 10:11:41,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 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) [2023-12-25 10:11:41,806 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 278 transitions. [2023-12-25 10:11:41,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-25 10:11:41,806 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:41,807 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] [2023-12-25 10:11:41,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:42,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:42,010 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:42,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:42,010 INFO L85 PathProgramCache]: Analyzing trace with hash -482876882, now seen corresponding path program 1 times [2023-12-25 10:11:42,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:42,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [76941646] [2023-12-25 10:11:42,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:42,011 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:42,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:42,012 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:42,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 10:11:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:42,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:11:42,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:42,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:42,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:42,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:42,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [76941646] [2023-12-25 10:11:42,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [76941646] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:42,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:42,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 10:11:42,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178151469] [2023-12-25 10:11:42,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:42,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:11:42,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:42,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:11:42,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:11:42,520 INFO L87 Difference]: Start difference. First operand 213 states and 278 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 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) [2023-12-25 10:11:42,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:42,933 INFO L93 Difference]: Finished difference Result 331 states and 450 transitions. [2023-12-25 10:11:42,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 10:11:42,933 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 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 [2023-12-25 10:11:42,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:42,934 INFO L225 Difference]: With dead ends: 331 [2023-12-25 10:11:42,934 INFO L226 Difference]: Without dead ends: 213 [2023-12-25 10:11:42,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 10:11:42,936 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 503 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:42,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 272 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 10:11:42,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-12-25 10:11:42,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2023-12-25 10:11:42,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 1.2971698113207548) internal successors, (275), 212 states have internal predecessors, (275), 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) [2023-12-25 10:11:42,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 275 transitions. [2023-12-25 10:11:42,939 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 275 transitions. Word has length 90 [2023-12-25 10:11:42,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:42,939 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 275 transitions. [2023-12-25 10:11:42,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 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) [2023-12-25 10:11:42,939 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 275 transitions. [2023-12-25 10:11:42,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-25 10:11:42,940 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:42,940 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] [2023-12-25 10:11:42,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:43,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:43,144 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:43,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:43,145 INFO L85 PathProgramCache]: Analyzing trace with hash -696431914, now seen corresponding path program 1 times [2023-12-25 10:11:43,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:43,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758259852] [2023-12-25 10:11:43,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:43,145 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 [2023-12-25 10:11:43,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:43,147 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:43,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 10:11:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:43,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:11:43,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:43,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:43,295 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:43,295 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:43,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758259852] [2023-12-25 10:11:43,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758259852] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:43,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:43,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:11:43,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884733305] [2023-12-25 10:11:43,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:43,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:11:43,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:43,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:11:43,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:11:43,297 INFO L87 Difference]: Start difference. First operand 213 states and 275 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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) [2023-12-25 10:11:43,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:43,312 INFO L93 Difference]: Finished difference Result 409 states and 571 transitions. [2023-12-25 10:11:43,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:11:43,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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 [2023-12-25 10:11:43,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:43,314 INFO L225 Difference]: With dead ends: 409 [2023-12-25 10:11:43,314 INFO L226 Difference]: Without dead ends: 303 [2023-12-25 10:11:43,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:11:43,314 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 90 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:43,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 305 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:11:43,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-12-25 10:11:43,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 301. [2023-12-25 10:11:43,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 300 states have (on average 1.36) internal successors, (408), 300 states have internal predecessors, (408), 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) [2023-12-25 10:11:43,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 408 transitions. [2023-12-25 10:11:43,318 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 408 transitions. Word has length 93 [2023-12-25 10:11:43,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:43,319 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 408 transitions. [2023-12-25 10:11:43,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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) [2023-12-25 10:11:43,319 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 408 transitions. [2023-12-25 10:11:43,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-25 10:11:43,319 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:43,320 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] [2023-12-25 10:11:43,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:43,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:43,523 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:43,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:43,524 INFO L85 PathProgramCache]: Analyzing trace with hash -317932261, now seen corresponding path program 1 times [2023-12-25 10:11:43,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:43,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523285497] [2023-12-25 10:11:43,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:43,524 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:43,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:43,525 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:43,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 10:11:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:43,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:11:43,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:43,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:43,674 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:43,674 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:43,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523285497] [2023-12-25 10:11:43,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523285497] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:43,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:43,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:11:43,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267253332] [2023-12-25 10:11:43,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:43,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:11:43,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:43,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:11:43,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:11:43,675 INFO L87 Difference]: Start difference. First operand 301 states and 408 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2023-12-25 10:11:43,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:43,689 INFO L93 Difference]: Finished difference Result 657 states and 946 transitions. [2023-12-25 10:11:43,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:11:43,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2023-12-25 10:11:43,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:43,690 INFO L225 Difference]: With dead ends: 657 [2023-12-25 10:11:43,690 INFO L226 Difference]: Without dead ends: 463 [2023-12-25 10:11:43,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:11:43,691 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 82 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:43,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 306 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:11:43,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2023-12-25 10:11:43,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 461. [2023-12-25 10:11:43,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 460 states have (on average 1.4086956521739131) internal successors, (648), 460 states have internal predecessors, (648), 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) [2023-12-25 10:11:43,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 648 transitions. [2023-12-25 10:11:43,697 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 648 transitions. Word has length 94 [2023-12-25 10:11:43,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:43,698 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 648 transitions. [2023-12-25 10:11:43,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2023-12-25 10:11:43,698 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 648 transitions. [2023-12-25 10:11:43,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-25 10:11:43,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:43,698 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, 1] [2023-12-25 10:11:43,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:43,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:43,902 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:43,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:43,902 INFO L85 PathProgramCache]: Analyzing trace with hash 138290890, now seen corresponding path program 1 times [2023-12-25 10:11:43,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:43,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406721819] [2023-12-25 10:11:43,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:43,904 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:43,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:43,905 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:43,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 10:11:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:44,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:11:44,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:44,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:44,055 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:44,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:44,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406721819] [2023-12-25 10:11:44,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406721819] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:44,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:44,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:11:44,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956978089] [2023-12-25 10:11:44,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:44,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:11:44,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:44,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:11:44,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:11:44,056 INFO L87 Difference]: Start difference. First operand 461 states and 648 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2023-12-25 10:11:44,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:44,070 INFO L93 Difference]: Finished difference Result 1105 states and 1618 transitions. [2023-12-25 10:11:44,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:11:44,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2023-12-25 10:11:44,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:44,072 INFO L225 Difference]: With dead ends: 1105 [2023-12-25 10:11:44,072 INFO L226 Difference]: Without dead ends: 751 [2023-12-25 10:11:44,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:11:44,073 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 74 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:44,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 307 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:11:44,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2023-12-25 10:11:44,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 749. [2023-12-25 10:11:44,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 748 states have (on average 1.4385026737967914) internal successors, (1076), 748 states have internal predecessors, (1076), 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) [2023-12-25 10:11:44,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1076 transitions. [2023-12-25 10:11:44,082 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1076 transitions. Word has length 95 [2023-12-25 10:11:44,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:44,082 INFO L495 AbstractCegarLoop]: Abstraction has 749 states and 1076 transitions. [2023-12-25 10:11:44,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2023-12-25 10:11:44,083 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1076 transitions. [2023-12-25 10:11:44,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 10:11:44,083 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:44,083 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, 1, 1] [2023-12-25 10:11:44,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2023-12-25 10:11:44,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:44,287 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:44,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:44,287 INFO L85 PathProgramCache]: Analyzing trace with hash -347860913, now seen corresponding path program 1 times [2023-12-25 10:11:44,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:44,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914597983] [2023-12-25 10:11:44,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:44,288 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:44,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:44,292 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:44,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 10:11:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:44,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 10:11:44,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:45,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:45,052 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:45,053 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:45,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914597983] [2023-12-25 10:11:45,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1914597983] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:45,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:45,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 10:11:45,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486867825] [2023-12-25 10:11:45,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:45,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 10:11:45,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:45,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 10:11:45,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:11:45,054 INFO L87 Difference]: Start difference. First operand 749 states and 1076 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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) [2023-12-25 10:11:45,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:45,148 INFO L93 Difference]: Finished difference Result 3959 states and 5881 transitions. [2023-12-25 10:11:45,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 10:11:45,149 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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 96 [2023-12-25 10:11:45,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:45,158 INFO L225 Difference]: With dead ends: 3959 [2023-12-25 10:11:45,158 INFO L226 Difference]: Without dead ends: 3317 [2023-12-25 10:11:45,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:11:45,160 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 374 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:45,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 604 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:11:45,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3317 states. [2023-12-25 10:11:45,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3317 to 2029. [2023-12-25 10:11:45,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2029 states, 2028 states have (on average 1.4536489151873768) internal successors, (2948), 2028 states have internal predecessors, (2948), 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) [2023-12-25 10:11:45,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 2948 transitions. [2023-12-25 10:11:45,192 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 2948 transitions. Word has length 96 [2023-12-25 10:11:45,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:45,192 INFO L495 AbstractCegarLoop]: Abstraction has 2029 states and 2948 transitions. [2023-12-25 10:11:45,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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) [2023-12-25 10:11:45,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 2948 transitions. [2023-12-25 10:11:45,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-25 10:11:45,193 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:45,193 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, 1, 1, 1, 1] [2023-12-25 10:11:45,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:45,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:45,397 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:45,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:45,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1681607169, now seen corresponding path program 1 times [2023-12-25 10:11:45,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:45,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694477101] [2023-12-25 10:11:45,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:45,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:45,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:45,399 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:45,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-25 10:11:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:45,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 10:11:45,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:45,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:45,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:45,671 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:45,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694477101] [2023-12-25 10:11:45,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1694477101] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:45,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:45,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 10:11:45,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680180730] [2023-12-25 10:11:45,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:45,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 10:11:45,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:45,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 10:11:45,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 10:11:45,673 INFO L87 Difference]: Start difference. First operand 2029 states and 2948 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2023-12-25 10:11:45,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:45,713 INFO L93 Difference]: Finished difference Result 5617 states and 8166 transitions. [2023-12-25 10:11:45,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 10:11:45,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 98 [2023-12-25 10:11:45,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:45,725 INFO L225 Difference]: With dead ends: 5617 [2023-12-25 10:11:45,725 INFO L226 Difference]: Without dead ends: 3695 [2023-12-25 10:11:45,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 10:11:45,730 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 52 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:45,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 368 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:11:45,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3695 states. [2023-12-25 10:11:45,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3695 to 3645. [2023-12-25 10:11:45,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3645 states, 3644 states have (on average 1.4149286498353457) internal successors, (5156), 3644 states have internal predecessors, (5156), 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) [2023-12-25 10:11:45,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3645 states to 3645 states and 5156 transitions. [2023-12-25 10:11:45,777 INFO L78 Accepts]: Start accepts. Automaton has 3645 states and 5156 transitions. Word has length 98 [2023-12-25 10:11:45,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:45,777 INFO L495 AbstractCegarLoop]: Abstraction has 3645 states and 5156 transitions. [2023-12-25 10:11:45,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2023-12-25 10:11:45,778 INFO L276 IsEmpty]: Start isEmpty. Operand 3645 states and 5156 transitions. [2023-12-25 10:11:45,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-25 10:11:45,778 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:45,779 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, 1, 1, 1, 1, 1] [2023-12-25 10:11:45,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:45,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:45,983 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:45,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:45,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1025766666, now seen corresponding path program 1 times [2023-12-25 10:11:45,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:45,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960405637] [2023-12-25 10:11:45,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:45,984 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:45,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:45,985 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:45,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-25 10:11:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:46,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 10:11:46,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:46,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:46,150 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:46,151 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:46,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960405637] [2023-12-25 10:11:46,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960405637] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:46,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:46,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 10:11:46,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487743519] [2023-12-25 10:11:46,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:46,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 10:11:46,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:46,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 10:11:46,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 10:11:46,152 INFO L87 Difference]: Start difference. First operand 3645 states and 5156 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2023-12-25 10:11:46,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:46,249 INFO L93 Difference]: Finished difference Result 6663 states and 9352 transitions. [2023-12-25 10:11:46,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 10:11:46,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 99 [2023-12-25 10:11:46,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:46,270 INFO L225 Difference]: With dead ends: 6663 [2023-12-25 10:11:46,270 INFO L226 Difference]: Without dead ends: 6661 [2023-12-25 10:11:46,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:11:46,274 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 259 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:46,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 631 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:11:46,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6661 states. [2023-12-25 10:11:46,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6661 to 3837. [2023-12-25 10:11:46,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3837 states, 3836 states have (on average 1.3899895724713243) internal successors, (5332), 3836 states have internal predecessors, (5332), 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) [2023-12-25 10:11:46,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3837 states to 3837 states and 5332 transitions. [2023-12-25 10:11:46,345 INFO L78 Accepts]: Start accepts. Automaton has 3837 states and 5332 transitions. Word has length 99 [2023-12-25 10:11:46,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:46,345 INFO L495 AbstractCegarLoop]: Abstraction has 3837 states and 5332 transitions. [2023-12-25 10:11:46,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2023-12-25 10:11:46,345 INFO L276 IsEmpty]: Start isEmpty. Operand 3837 states and 5332 transitions. [2023-12-25 10:11:46,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-25 10:11:46,346 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:46,346 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, 1, 1, 1, 1, 1] [2023-12-25 10:11:46,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:46,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:46,550 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:46,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:46,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1174018370, now seen corresponding path program 1 times [2023-12-25 10:11:46,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:46,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246474794] [2023-12-25 10:11:46,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:46,551 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:46,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:46,552 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:46,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-25 10:11:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:46,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:11:46,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:46,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:46,708 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:46,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:46,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246474794] [2023-12-25 10:11:46,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246474794] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:46,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:46,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:11:46,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248495832] [2023-12-25 10:11:46,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:46,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:11:46,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:46,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:11:46,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:11:46,709 INFO L87 Difference]: Start difference. First operand 3837 states and 5332 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2023-12-25 10:11:46,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:46,748 INFO L93 Difference]: Finished difference Result 7495 states and 10550 transitions. [2023-12-25 10:11:46,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:11:46,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 99 [2023-12-25 10:11:46,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:46,766 INFO L225 Difference]: With dead ends: 7495 [2023-12-25 10:11:46,767 INFO L226 Difference]: Without dead ends: 5427 [2023-12-25 10:11:46,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:11:46,772 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 94 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:46,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 307 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:11:46,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5427 states. [2023-12-25 10:11:46,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5427 to 5425. [2023-12-25 10:11:46,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5425 states, 5424 states have (on average 1.3864306784660767) internal successors, (7520), 5424 states have internal predecessors, (7520), 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) [2023-12-25 10:11:46,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5425 states to 5425 states and 7520 transitions. [2023-12-25 10:11:46,862 INFO L78 Accepts]: Start accepts. Automaton has 5425 states and 7520 transitions. Word has length 99 [2023-12-25 10:11:46,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:46,862 INFO L495 AbstractCegarLoop]: Abstraction has 5425 states and 7520 transitions. [2023-12-25 10:11:46,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2023-12-25 10:11:46,862 INFO L276 IsEmpty]: Start isEmpty. Operand 5425 states and 7520 transitions. [2023-12-25 10:11:46,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-25 10:11:46,865 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:46,865 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:11:46,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:47,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:47,070 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:47,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:47,070 INFO L85 PathProgramCache]: Analyzing trace with hash 392690215, now seen corresponding path program 1 times [2023-12-25 10:11:47,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:47,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146691479] [2023-12-25 10:11:47,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:47,071 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:47,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:47,072 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:47,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-25 10:11:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:47,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:11:47,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:47,250 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:47,251 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:11:47,251 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:47,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146691479] [2023-12-25 10:11:47,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146691479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:11:47,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:11:47,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:11:47,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567216402] [2023-12-25 10:11:47,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:11:47,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:11:47,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:47,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:11:47,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:11:47,263 INFO L87 Difference]: Start difference. First operand 5425 states and 7520 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2023-12-25 10:11:47,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:47,292 INFO L93 Difference]: Finished difference Result 9145 states and 12761 transitions. [2023-12-25 10:11:47,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:11:47,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 124 [2023-12-25 10:11:47,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:47,299 INFO L225 Difference]: With dead ends: 9145 [2023-12-25 10:11:47,299 INFO L226 Difference]: Without dead ends: 3831 [2023-12-25 10:11:47,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:11:47,306 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 68 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:47,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 306 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:11:47,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3831 states. [2023-12-25 10:11:47,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3831 to 3829. [2023-12-25 10:11:47,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3829 states, 3828 states have (on average 1.3868861024033439) internal successors, (5309), 3828 states have internal predecessors, (5309), 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) [2023-12-25 10:11:47,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3829 states to 3829 states and 5309 transitions. [2023-12-25 10:11:47,352 INFO L78 Accepts]: Start accepts. Automaton has 3829 states and 5309 transitions. Word has length 124 [2023-12-25 10:11:47,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:47,352 INFO L495 AbstractCegarLoop]: Abstraction has 3829 states and 5309 transitions. [2023-12-25 10:11:47,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2023-12-25 10:11:47,352 INFO L276 IsEmpty]: Start isEmpty. Operand 3829 states and 5309 transitions. [2023-12-25 10:11:47,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-25 10:11:47,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:47,354 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:11:47,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:47,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:47,558 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:47,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:47,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1756360535, now seen corresponding path program 1 times [2023-12-25 10:11:47,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:47,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414617949] [2023-12-25 10:11:47,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:47,559 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:47,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:47,560 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:47,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-25 10:11:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:47,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 10:11:47,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:48,611 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:48,611 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:11:48,977 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:48,978 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:48,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414617949] [2023-12-25 10:11:48,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [414617949] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:11:48,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:11:48,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-12-25 10:11:48,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896752828] [2023-12-25 10:11:48,978 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:11:48,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-25 10:11:48,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:48,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-25 10:11:48,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2023-12-25 10:11:48,980 INFO L87 Difference]: Start difference. First operand 3829 states and 5309 transitions. Second operand has 24 states, 24 states have (on average 9.5) internal successors, (228), 23 states have internal predecessors, (228), 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) [2023-12-25 10:11:55,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:11:55,021 INFO L93 Difference]: Finished difference Result 22835 states and 31218 transitions. [2023-12-25 10:11:55,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2023-12-25 10:11:55,022 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.5) internal successors, (228), 23 states have internal predecessors, (228), 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 125 [2023-12-25 10:11:55,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:11:55,051 INFO L225 Difference]: With dead ends: 22835 [2023-12-25 10:11:55,051 INFO L226 Difference]: Without dead ends: 19185 [2023-12-25 10:11:55,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2990 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1992, Invalid=8310, Unknown=0, NotChecked=0, Total=10302 [2023-12-25 10:11:55,060 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 4031 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 1595 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4031 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 1624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-25 10:11:55,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4031 Valid, 1637 Invalid, 1624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1595 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-25 10:11:55,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19185 states. [2023-12-25 10:11:55,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19185 to 3829. [2023-12-25 10:11:55,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3829 states, 3828 states have (on average 1.3806165099268548) internal successors, (5285), 3828 states have internal predecessors, (5285), 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) [2023-12-25 10:11:55,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3829 states to 3829 states and 5285 transitions. [2023-12-25 10:11:55,173 INFO L78 Accepts]: Start accepts. Automaton has 3829 states and 5285 transitions. Word has length 125 [2023-12-25 10:11:55,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:11:55,173 INFO L495 AbstractCegarLoop]: Abstraction has 3829 states and 5285 transitions. [2023-12-25 10:11:55,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.5) internal successors, (228), 23 states have internal predecessors, (228), 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) [2023-12-25 10:11:55,173 INFO L276 IsEmpty]: Start isEmpty. Operand 3829 states and 5285 transitions. [2023-12-25 10:11:55,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-25 10:11:55,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:11:55,175 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:11:55,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-25 10:11:55,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:55,379 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:11:55,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:11:55,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1015901527, now seen corresponding path program 1 times [2023-12-25 10:11:55,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:11:55,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37081461] [2023-12-25 10:11:55,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:11:55,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:11:55,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:11:55,382 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:11:55,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-25 10:11:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:11:55,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 10:11:55,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:11:56,425 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:56,425 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:11:56,749 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:11:56,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:11:56,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37081461] [2023-12-25 10:11:56,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [37081461] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:11:56,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:11:56,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-12-25 10:11:56,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017051755] [2023-12-25 10:11:56,749 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:11:56,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-25 10:11:56,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:11:56,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-25 10:11:56,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2023-12-25 10:11:56,751 INFO L87 Difference]: Start difference. First operand 3829 states and 5285 transitions. Second operand has 22 states, 22 states have (on average 10.636363636363637) internal successors, (234), 21 states have internal predecessors, (234), 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) [2023-12-25 10:12:01,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:01,730 INFO L93 Difference]: Finished difference Result 17771 states and 24468 transitions. [2023-12-25 10:12:01,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-25 10:12:01,731 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.636363636363637) internal successors, (234), 21 states have internal predecessors, (234), 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 125 [2023-12-25 10:12:01,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:01,781 INFO L225 Difference]: With dead ends: 17771 [2023-12-25 10:12:01,781 INFO L226 Difference]: Without dead ends: 14089 [2023-12-25 10:12:01,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1436 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1336, Invalid=4516, Unknown=0, NotChecked=0, Total=5852 [2023-12-25 10:12:01,789 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 3857 mSDsluCounter, 1747 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3857 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 1902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:01,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3857 Valid, 1959 Invalid, 1902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1871 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-25 10:12:01,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14089 states. [2023-12-25 10:12:01,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14089 to 3845. [2023-12-25 10:12:01,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3845 states, 3844 states have (on average 1.3772112382934443) internal successors, (5294), 3844 states have internal predecessors, (5294), 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) [2023-12-25 10:12:01,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3845 states to 3845 states and 5294 transitions. [2023-12-25 10:12:01,888 INFO L78 Accepts]: Start accepts. Automaton has 3845 states and 5294 transitions. Word has length 125 [2023-12-25 10:12:01,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:12:01,888 INFO L495 AbstractCegarLoop]: Abstraction has 3845 states and 5294 transitions. [2023-12-25 10:12:01,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.636363636363637) internal successors, (234), 21 states have internal predecessors, (234), 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) [2023-12-25 10:12:01,889 INFO L276 IsEmpty]: Start isEmpty. Operand 3845 states and 5294 transitions. [2023-12-25 10:12:01,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 10:12:01,891 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:12:01,891 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:12:01,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-25 10:12:02,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:02,095 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:12:02,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:12:02,095 INFO L85 PathProgramCache]: Analyzing trace with hash 134128319, now seen corresponding path program 1 times [2023-12-25 10:12:02,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:12:02,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791429160] [2023-12-25 10:12:02,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:12:02,096 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:02,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:12:02,097 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:12:02,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-25 10:12:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:12:02,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 10:12:02,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:12:02,950 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:02,950 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:12:03,176 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:03,176 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:12:03,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791429160] [2023-12-25 10:12:03,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791429160] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:12:03,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:12:03,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 10:12:03,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546303218] [2023-12-25 10:12:03,176 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:12:03,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 10:12:03,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:12:03,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 10:12:03,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 10:12:03,177 INFO L87 Difference]: Start difference. First operand 3845 states and 5294 transitions. Second operand has 16 states, 16 states have (on average 15.0) internal successors, (240), 15 states have internal predecessors, (240), 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) [2023-12-25 10:12:05,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:05,960 INFO L93 Difference]: Finished difference Result 17570 states and 24051 transitions. [2023-12-25 10:12:05,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-25 10:12:05,960 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.0) internal successors, (240), 15 states have internal predecessors, (240), 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 126 [2023-12-25 10:12:05,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:05,994 INFO L225 Difference]: With dead ends: 17570 [2023-12-25 10:12:05,994 INFO L226 Difference]: Without dead ends: 13848 [2023-12-25 10:12:06,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1306 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1229, Invalid=3601, Unknown=0, NotChecked=0, Total=4830 [2023-12-25 10:12:06,000 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 2621 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2621 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:06,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2621 Valid, 1022 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 10:12:06,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13848 states. [2023-12-25 10:12:06,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13848 to 4013. [2023-12-25 10:12:06,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4013 states, 4012 states have (on average 1.3673978065802592) internal successors, (5486), 4012 states have internal predecessors, (5486), 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) [2023-12-25 10:12:06,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4013 states to 4013 states and 5486 transitions. [2023-12-25 10:12:06,086 INFO L78 Accepts]: Start accepts. Automaton has 4013 states and 5486 transitions. Word has length 126 [2023-12-25 10:12:06,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:12:06,087 INFO L495 AbstractCegarLoop]: Abstraction has 4013 states and 5486 transitions. [2023-12-25 10:12:06,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.0) internal successors, (240), 15 states have internal predecessors, (240), 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) [2023-12-25 10:12:06,087 INFO L276 IsEmpty]: Start isEmpty. Operand 4013 states and 5486 transitions. [2023-12-25 10:12:06,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-25 10:12:06,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:12:06,089 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:12:06,100 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 (34)] Forceful destruction successful, exit code 0 [2023-12-25 10:12:06,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:06,292 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:12:06,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:12:06,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1180795581, now seen corresponding path program 1 times [2023-12-25 10:12:06,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:12:06,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285469511] [2023-12-25 10:12:06,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:12:06,293 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:06,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:12:06,295 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:12:06,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-25 10:12:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:12:06,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 10:12:06,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:12:07,413 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:07,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:12:07,719 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:07,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:12:07,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285469511] [2023-12-25 10:12:07,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285469511] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:12:07,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:12:07,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-12-25 10:12:07,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031582891] [2023-12-25 10:12:07,719 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:12:07,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-25 10:12:07,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:12:07,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-25 10:12:07,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2023-12-25 10:12:07,720 INFO L87 Difference]: Start difference. First operand 4013 states and 5486 transitions. Second operand has 24 states, 24 states have (on average 10.25) internal successors, (246), 23 states have internal predecessors, (246), 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) [2023-12-25 10:12:16,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:16,651 INFO L93 Difference]: Finished difference Result 27478 states and 37021 transitions. [2023-12-25 10:12:16,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2023-12-25 10:12:16,652 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 10.25) internal successors, (246), 23 states have internal predecessors, (246), 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 127 [2023-12-25 10:12:16,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:16,671 INFO L225 Difference]: With dead ends: 27478 [2023-12-25 10:12:16,671 INFO L226 Difference]: Without dead ends: 23588 [2023-12-25 10:12:16,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5876 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=3525, Invalid=14565, Unknown=0, NotChecked=0, Total=18090 [2023-12-25 10:12:16,684 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 4323 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 1660 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4323 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 1701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:16,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4323 Valid, 1718 Invalid, 1701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1660 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-25 10:12:16,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23588 states. [2023-12-25 10:12:16,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23588 to 4181. [2023-12-25 10:12:16,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4181 states, 4180 states have (on average 1.358373205741627) internal successors, (5678), 4180 states have internal predecessors, (5678), 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) [2023-12-25 10:12:16,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4181 states to 4181 states and 5678 transitions. [2023-12-25 10:12:16,829 INFO L78 Accepts]: Start accepts. Automaton has 4181 states and 5678 transitions. Word has length 127 [2023-12-25 10:12:16,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:12:16,830 INFO L495 AbstractCegarLoop]: Abstraction has 4181 states and 5678 transitions. [2023-12-25 10:12:16,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 10.25) internal successors, (246), 23 states have internal predecessors, (246), 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) [2023-12-25 10:12:16,830 INFO L276 IsEmpty]: Start isEmpty. Operand 4181 states and 5678 transitions. [2023-12-25 10:12:16,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 10:12:16,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:12:16,832 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:12:16,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-25 10:12:17,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:17,035 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:12:17,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:12:17,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1614102070, now seen corresponding path program 1 times [2023-12-25 10:12:17,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:12:17,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272814533] [2023-12-25 10:12:17,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:12:17,037 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:17,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:12:17,038 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:12:17,041 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 (36)] Waiting until timeout for monitored process [2023-12-25 10:12:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:12:17,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:12:17,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:12:17,225 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:17,225 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:12:17,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:12:17,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272814533] [2023-12-25 10:12:17,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272814533] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:12:17,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:12:17,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:12:17,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531537186] [2023-12-25 10:12:17,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:12:17,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:12:17,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:12:17,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:12:17,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:12:17,226 INFO L87 Difference]: Start difference. First operand 4181 states and 5678 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2023-12-25 10:12:17,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:17,246 INFO L93 Difference]: Finished difference Result 6129 states and 8344 transitions. [2023-12-25 10:12:17,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:12:17,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 128 [2023-12-25 10:12:17,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:17,248 INFO L225 Difference]: With dead ends: 6129 [2023-12-25 10:12:17,248 INFO L226 Difference]: Without dead ends: 2071 [2023-12-25 10:12:17,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:12:17,251 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 68 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:17,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 281 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:12:17,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2071 states. [2023-12-25 10:12:17,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2071 to 2069. [2023-12-25 10:12:17,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 2068 states have (on average 1.3355899419729207) internal successors, (2762), 2068 states have internal predecessors, (2762), 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) [2023-12-25 10:12:17,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 2762 transitions. [2023-12-25 10:12:17,265 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 2762 transitions. Word has length 128 [2023-12-25 10:12:17,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:12:17,266 INFO L495 AbstractCegarLoop]: Abstraction has 2069 states and 2762 transitions. [2023-12-25 10:12:17,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2023-12-25 10:12:17,266 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 2762 transitions. [2023-12-25 10:12:17,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 10:12:17,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:12:17,267 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:12:17,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2023-12-25 10:12:17,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:17,471 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:12:17,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:12:17,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1369744941, now seen corresponding path program 1 times [2023-12-25 10:12:17,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:12:17,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229250036] [2023-12-25 10:12:17,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:12:17,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:17,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:12:17,474 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:12:17,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-25 10:12:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:12:17,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 10:12:17,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:12:18,157 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 10:12:18,157 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:12:18,157 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:12:18,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1229250036] [2023-12-25 10:12:18,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1229250036] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:12:18,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:12:18,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 10:12:18,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044463996] [2023-12-25 10:12:18,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:12:18,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 10:12:18,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:12:18,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 10:12:18,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:12:18,159 INFO L87 Difference]: Start difference. First operand 2069 states and 2762 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2023-12-25 10:12:18,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:18,245 INFO L93 Difference]: Finished difference Result 5319 states and 7179 transitions. [2023-12-25 10:12:18,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 10:12:18,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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 128 [2023-12-25 10:12:18,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:18,248 INFO L225 Difference]: With dead ends: 5319 [2023-12-25 10:12:18,248 INFO L226 Difference]: Without dead ends: 3373 [2023-12-25 10:12:18,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:12:18,250 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 299 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:18,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 619 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:12:18,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3373 states. [2023-12-25 10:12:18,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3373 to 2069. [2023-12-25 10:12:18,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 2068 states have (on average 1.3123791102514506) internal successors, (2714), 2068 states have internal predecessors, (2714), 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) [2023-12-25 10:12:18,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 2714 transitions. [2023-12-25 10:12:18,274 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 2714 transitions. Word has length 128 [2023-12-25 10:12:18,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:12:18,274 INFO L495 AbstractCegarLoop]: Abstraction has 2069 states and 2714 transitions. [2023-12-25 10:12:18,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2023-12-25 10:12:18,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 2714 transitions. [2023-12-25 10:12:18,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 10:12:18,276 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:12:18,276 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:12:18,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2023-12-25 10:12:18,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:18,483 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:12:18,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:12:18,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1905013436, now seen corresponding path program 1 times [2023-12-25 10:12:18,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:12:18,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [29495461] [2023-12-25 10:12:18,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:12:18,484 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:18,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:12:18,485 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:12:18,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-25 10:12:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:12:18,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:12:18,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:12:18,662 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:18,663 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:12:18,663 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:12:18,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [29495461] [2023-12-25 10:12:18,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [29495461] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:12:18,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:12:18,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:12:18,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315022392] [2023-12-25 10:12:18,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:12:18,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:12:18,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:12:18,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:12:18,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:12:18,664 INFO L87 Difference]: Start difference. First operand 2069 states and 2714 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2023-12-25 10:12:18,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:18,680 INFO L93 Difference]: Finished difference Result 3045 states and 3994 transitions. [2023-12-25 10:12:18,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:12:18,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 128 [2023-12-25 10:12:18,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:18,682 INFO L225 Difference]: With dead ends: 3045 [2023-12-25 10:12:18,682 INFO L226 Difference]: Without dead ends: 1099 [2023-12-25 10:12:18,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:12:18,684 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 63 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:18,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 262 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:12:18,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2023-12-25 10:12:18,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 1097. [2023-12-25 10:12:18,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1097 states, 1096 states have (on average 1.2773722627737227) internal successors, (1400), 1096 states have internal predecessors, (1400), 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) [2023-12-25 10:12:18,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1400 transitions. [2023-12-25 10:12:18,691 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1400 transitions. Word has length 128 [2023-12-25 10:12:18,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:12:18,691 INFO L495 AbstractCegarLoop]: Abstraction has 1097 states and 1400 transitions. [2023-12-25 10:12:18,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2023-12-25 10:12:18,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1400 transitions. [2023-12-25 10:12:18,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 10:12:18,692 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:12:18,692 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:12:18,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2023-12-25 10:12:18,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:18,897 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:12:18,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:12:18,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1185874279, now seen corresponding path program 1 times [2023-12-25 10:12:18,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:12:18,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169403812] [2023-12-25 10:12:18,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:12:18,898 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:18,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:12:18,899 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:12:18,900 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 (39)] Waiting until timeout for monitored process [2023-12-25 10:12:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:12:19,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 10:12:19,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:12:19,605 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 10:12:19,606 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:12:19,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:12:19,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169403812] [2023-12-25 10:12:19,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1169403812] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:12:19,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:12:19,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 10:12:19,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772273410] [2023-12-25 10:12:19,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:12:19,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 10:12:19,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:12:19,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 10:12:19,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:12:19,608 INFO L87 Difference]: Start difference. First operand 1097 states and 1400 transitions. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 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) [2023-12-25 10:12:19,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:19,705 INFO L93 Difference]: Finished difference Result 2403 states and 3157 transitions. [2023-12-25 10:12:19,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 10:12:19,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 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 128 [2023-12-25 10:12:19,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:19,708 INFO L225 Difference]: With dead ends: 2403 [2023-12-25 10:12:19,708 INFO L226 Difference]: Without dead ends: 2077 [2023-12-25 10:12:19,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:12:19,709 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 342 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:19,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 588 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:12:19,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2077 states. [2023-12-25 10:12:19,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2077 to 1421. [2023-12-25 10:12:19,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 1420 states have (on average 1.2774647887323944) internal successors, (1814), 1420 states have internal predecessors, (1814), 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) [2023-12-25 10:12:19,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 1814 transitions. [2023-12-25 10:12:19,725 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 1814 transitions. Word has length 128 [2023-12-25 10:12:19,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:12:19,726 INFO L495 AbstractCegarLoop]: Abstraction has 1421 states and 1814 transitions. [2023-12-25 10:12:19,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 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) [2023-12-25 10:12:19,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 1814 transitions. [2023-12-25 10:12:19,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 10:12:19,727 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:12:19,727 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:12:19,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2023-12-25 10:12:19,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:19,931 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:12:19,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:12:19,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1814128019, now seen corresponding path program 1 times [2023-12-25 10:12:19,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:12:19,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343145521] [2023-12-25 10:12:19,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:12:19,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:19,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:12:19,933 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:12:19,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-12-25 10:12:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:12:20,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 10:12:20,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:12:20,619 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 10:12:20,620 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:12:20,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:12:20,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343145521] [2023-12-25 10:12:20,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1343145521] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:12:20,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:12:20,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 10:12:20,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317829155] [2023-12-25 10:12:20,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:12:20,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 10:12:20,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:12:20,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 10:12:20,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:12:20,621 INFO L87 Difference]: Start difference. First operand 1421 states and 1814 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2023-12-25 10:12:20,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:20,709 INFO L93 Difference]: Finished difference Result 2727 states and 3571 transitions. [2023-12-25 10:12:20,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 10:12:20,710 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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 128 [2023-12-25 10:12:20,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:20,712 INFO L225 Difference]: With dead ends: 2727 [2023-12-25 10:12:20,712 INFO L226 Difference]: Without dead ends: 2401 [2023-12-25 10:12:20,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:12:20,713 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 259 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:20,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 764 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:12:20,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2023-12-25 10:12:20,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 1745. [2023-12-25 10:12:20,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1744 states have (on average 1.2775229357798166) internal successors, (2228), 1744 states have internal predecessors, (2228), 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) [2023-12-25 10:12:20,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2228 transitions. [2023-12-25 10:12:20,728 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2228 transitions. Word has length 128 [2023-12-25 10:12:20,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:12:20,728 INFO L495 AbstractCegarLoop]: Abstraction has 1745 states and 2228 transitions. [2023-12-25 10:12:20,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2023-12-25 10:12:20,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2228 transitions. [2023-12-25 10:12:20,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 10:12:20,729 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:12:20,729 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:12:20,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2023-12-25 10:12:20,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:20,933 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:12:20,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:12:20,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1271117095, now seen corresponding path program 1 times [2023-12-25 10:12:20,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:12:20,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903638528] [2023-12-25 10:12:20,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:12:20,934 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:20,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:12:20,935 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:12:20,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-25 10:12:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:12:21,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 10:12:21,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:12:21,681 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 10:12:21,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:12:21,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:12:21,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903638528] [2023-12-25 10:12:21,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903638528] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:12:21,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:12:21,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 10:12:21,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446729708] [2023-12-25 10:12:21,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:12:21,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 10:12:21,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:12:21,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 10:12:21,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:12:21,683 INFO L87 Difference]: Start difference. First operand 1745 states and 2228 transitions. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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) [2023-12-25 10:12:21,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:21,776 INFO L93 Difference]: Finished difference Result 3051 states and 3985 transitions. [2023-12-25 10:12:21,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 10:12:21,777 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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 128 [2023-12-25 10:12:21,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:21,780 INFO L225 Difference]: With dead ends: 3051 [2023-12-25 10:12:21,780 INFO L226 Difference]: Without dead ends: 2725 [2023-12-25 10:12:21,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 10:12:21,782 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 297 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:21,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 595 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:12:21,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2725 states. [2023-12-25 10:12:21,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2725 to 2069. [2023-12-25 10:12:21,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 2068 states have (on average 1.2775628626692457) internal successors, (2642), 2068 states have internal predecessors, (2642), 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) [2023-12-25 10:12:21,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 2642 transitions. [2023-12-25 10:12:21,829 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 2642 transitions. Word has length 128 [2023-12-25 10:12:21,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:12:21,852 INFO L495 AbstractCegarLoop]: Abstraction has 2069 states and 2642 transitions. [2023-12-25 10:12:21,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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) [2023-12-25 10:12:21,852 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 2642 transitions. [2023-12-25 10:12:21,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 10:12:21,854 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:12:21,854 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:12:21,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2023-12-25 10:12:22,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:22,058 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:12:22,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:12:22,058 INFO L85 PathProgramCache]: Analyzing trace with hash -441755404, now seen corresponding path program 1 times [2023-12-25 10:12:22,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:12:22,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387677848] [2023-12-25 10:12:22,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:12:22,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:22,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:12:22,060 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:12:22,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-25 10:12:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:12:22,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 10:12:22,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:12:23,153 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:23,154 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:12:23,472 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:23,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:12:23,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [387677848] [2023-12-25 10:12:23,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [387677848] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:12:23,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:12:23,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2023-12-25 10:12:23,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849312554] [2023-12-25 10:12:23,473 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:12:23,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-25 10:12:23,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:12:23,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-25 10:12:23,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2023-12-25 10:12:23,474 INFO L87 Difference]: Start difference. First operand 2069 states and 2642 transitions. Second operand has 21 states, 21 states have (on average 11.333333333333334) internal successors, (238), 21 states have internal predecessors, (238), 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) [2023-12-25 10:12:28,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:28,954 INFO L93 Difference]: Finished difference Result 24608 states and 31329 transitions. [2023-12-25 10:12:28,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-12-25 10:12:28,954 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 11.333333333333334) internal successors, (238), 21 states have internal predecessors, (238), 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 129 [2023-12-25 10:12:28,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:28,973 INFO L225 Difference]: With dead ends: 24608 [2023-12-25 10:12:28,973 INFO L226 Difference]: Without dead ends: 22662 [2023-12-25 10:12:28,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1432 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1410, Invalid=4596, Unknown=0, NotChecked=0, Total=6006 [2023-12-25 10:12:28,981 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 2935 mSDsluCounter, 3548 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2935 SdHoareTripleChecker+Valid, 3798 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:28,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2935 Valid, 3798 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-25 10:12:28,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22662 states. [2023-12-25 10:12:29,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22662 to 7611. [2023-12-25 10:12:29,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7611 states, 7610 states have (on average 1.276084099868594) internal successors, (9711), 7610 states have internal predecessors, (9711), 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) [2023-12-25 10:12:29,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7611 states to 7611 states and 9711 transitions. [2023-12-25 10:12:29,174 INFO L78 Accepts]: Start accepts. Automaton has 7611 states and 9711 transitions. Word has length 129 [2023-12-25 10:12:29,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:12:29,174 INFO L495 AbstractCegarLoop]: Abstraction has 7611 states and 9711 transitions. [2023-12-25 10:12:29,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.333333333333334) internal successors, (238), 21 states have internal predecessors, (238), 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) [2023-12-25 10:12:29,175 INFO L276 IsEmpty]: Start isEmpty. Operand 7611 states and 9711 transitions. [2023-12-25 10:12:29,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 10:12:29,177 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:12:29,177 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:12:29,183 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 (42)] Forceful destruction successful, exit code 0 [2023-12-25 10:12:29,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:29,381 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:12:29,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:12:29,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1930964678, now seen corresponding path program 1 times [2023-12-25 10:12:29,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:12:29,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [981470080] [2023-12-25 10:12:29,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:12:29,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:29,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:12:29,383 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:12:29,394 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 (43)] Waiting until timeout for monitored process [2023-12-25 10:12:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:12:29,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 10:12:29,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:12:30,505 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:30,505 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:12:30,749 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:30,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:12:30,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [981470080] [2023-12-25 10:12:30,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [981470080] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:12:30,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:12:30,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2023-12-25 10:12:30,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145055751] [2023-12-25 10:12:30,750 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:12:30,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-25 10:12:30,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:12:30,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-25 10:12:30,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2023-12-25 10:12:30,751 INFO L87 Difference]: Start difference. First operand 7611 states and 9711 transitions. Second operand has 22 states, 22 states have (on average 10.590909090909092) internal successors, (233), 22 states have internal predecessors, (233), 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) [2023-12-25 10:12:34,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:34,897 INFO L93 Difference]: Finished difference Result 35304 states and 44882 transitions. [2023-12-25 10:12:34,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-25 10:12:34,898 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.590909090909092) internal successors, (233), 22 states have internal predecessors, (233), 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 129 [2023-12-25 10:12:34,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:34,928 INFO L225 Difference]: With dead ends: 35304 [2023-12-25 10:12:34,928 INFO L226 Difference]: Without dead ends: 32858 [2023-12-25 10:12:34,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=937, Invalid=3095, Unknown=0, NotChecked=0, Total=4032 [2023-12-25 10:12:34,939 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 2592 mSDsluCounter, 3739 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2592 SdHoareTripleChecker+Valid, 4266 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:34,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2592 Valid, 4266 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1033 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-25 10:12:34,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32858 states. [2023-12-25 10:12:35,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32858 to 9606. [2023-12-25 10:12:35,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9606 states, 9605 states have (on average 1.2785007808433109) internal successors, (12280), 9605 states have internal predecessors, (12280), 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) [2023-12-25 10:12:35,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9606 states to 9606 states and 12280 transitions. [2023-12-25 10:12:35,127 INFO L78 Accepts]: Start accepts. Automaton has 9606 states and 12280 transitions. Word has length 129 [2023-12-25 10:12:35,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:12:35,127 INFO L495 AbstractCegarLoop]: Abstraction has 9606 states and 12280 transitions. [2023-12-25 10:12:35,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.590909090909092) internal successors, (233), 22 states have internal predecessors, (233), 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) [2023-12-25 10:12:35,127 INFO L276 IsEmpty]: Start isEmpty. Operand 9606 states and 12280 transitions. [2023-12-25 10:12:35,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 10:12:35,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:12:35,130 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:12:35,133 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 (43)] Forceful destruction successful, exit code 0 [2023-12-25 10:12:35,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:35,330 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:12:35,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:12:35,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1210684596, now seen corresponding path program 1 times [2023-12-25 10:12:35,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:12:35,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220687510] [2023-12-25 10:12:35,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:12:35,332 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:35,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:12:35,333 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:12:35,335 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 (44)] Waiting until timeout for monitored process [2023-12-25 10:12:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:12:35,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 10:12:35,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:12:36,407 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:36,408 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:12:36,631 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:36,631 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:12:36,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220687510] [2023-12-25 10:12:36,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220687510] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:12:36,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:12:36,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2023-12-25 10:12:36,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346855512] [2023-12-25 10:12:36,632 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:12:36,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-25 10:12:36,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:12:36,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-25 10:12:36,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2023-12-25 10:12:36,633 INFO L87 Difference]: Start difference. First operand 9606 states and 12280 transitions. Second operand has 24 states, 24 states have (on average 9.666666666666666) internal successors, (232), 24 states have internal predecessors, (232), 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) [2023-12-25 10:12:39,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:39,396 INFO L93 Difference]: Finished difference Result 55804 states and 71539 transitions. [2023-12-25 10:12:39,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-25 10:12:39,397 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.666666666666666) internal successors, (232), 24 states have internal predecessors, (232), 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 129 [2023-12-25 10:12:39,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:39,448 INFO L225 Difference]: With dead ends: 55804 [2023-12-25 10:12:39,448 INFO L226 Difference]: Without dead ends: 51606 [2023-12-25 10:12:39,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=513, Invalid=2139, Unknown=0, NotChecked=0, Total=2652 [2023-12-25 10:12:39,466 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 1932 mSDsluCounter, 3964 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1932 SdHoareTripleChecker+Valid, 4245 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:39,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1932 Valid, 4245 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 10:12:39,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51606 states. [2023-12-25 10:12:39,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51606 to 21110. [2023-12-25 10:12:39,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21110 states, 21109 states have (on average 1.2766592448718557) internal successors, (26949), 21109 states have internal predecessors, (26949), 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) [2023-12-25 10:12:39,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21110 states to 21110 states and 26949 transitions. [2023-12-25 10:12:39,827 INFO L78 Accepts]: Start accepts. Automaton has 21110 states and 26949 transitions. Word has length 129 [2023-12-25 10:12:39,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:12:39,827 INFO L495 AbstractCegarLoop]: Abstraction has 21110 states and 26949 transitions. [2023-12-25 10:12:39,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.666666666666666) internal successors, (232), 24 states have internal predecessors, (232), 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) [2023-12-25 10:12:39,827 INFO L276 IsEmpty]: Start isEmpty. Operand 21110 states and 26949 transitions. [2023-12-25 10:12:39,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 10:12:39,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:12:39,832 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:12:39,837 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 (44)] Forceful destruction successful, exit code 0 [2023-12-25 10:12:40,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:40,033 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:12:40,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:12:40,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1522509665, now seen corresponding path program 1 times [2023-12-25 10:12:40,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:12:40,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264842811] [2023-12-25 10:12:40,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:12:40,034 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:40,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:12:40,035 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:12:40,036 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 (45)] Waiting until timeout for monitored process [2023-12-25 10:12:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:12:40,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 10:12:40,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:12:41,139 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:41,140 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:12:41,425 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:41,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:12:41,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264842811] [2023-12-25 10:12:41,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [264842811] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:12:41,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:12:41,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2023-12-25 10:12:41,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468136999] [2023-12-25 10:12:41,425 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:12:41,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-25 10:12:41,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:12:41,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-25 10:12:41,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2023-12-25 10:12:41,427 INFO L87 Difference]: Start difference. First operand 21110 states and 26949 transitions. Second operand has 21 states, 21 states have (on average 11.428571428571429) internal successors, (240), 21 states have internal predecessors, (240), 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) [2023-12-25 10:12:44,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:44,207 INFO L93 Difference]: Finished difference Result 96790 states and 123269 transitions. [2023-12-25 10:12:44,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-25 10:12:44,207 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 11.428571428571429) internal successors, (240), 21 states have internal predecessors, (240), 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 129 [2023-12-25 10:12:44,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:44,289 INFO L225 Difference]: With dead ends: 96790 [2023-12-25 10:12:44,289 INFO L226 Difference]: Without dead ends: 84146 [2023-12-25 10:12:44,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=701, Invalid=2379, Unknown=0, NotChecked=0, Total=3080 [2023-12-25 10:12:44,316 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 1596 mSDsluCounter, 4875 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1596 SdHoareTripleChecker+Valid, 5245 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:44,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1596 Valid, 5245 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 10:12:44,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84146 states. [2023-12-25 10:12:44,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84146 to 50014. [2023-12-25 10:12:44,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50014 states, 50013 states have (on average 1.2774678583568273) internal successors, (63890), 50013 states have internal predecessors, (63890), 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) [2023-12-25 10:12:45,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50014 states to 50014 states and 63890 transitions. [2023-12-25 10:12:45,051 INFO L78 Accepts]: Start accepts. Automaton has 50014 states and 63890 transitions. Word has length 129 [2023-12-25 10:12:45,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:12:45,052 INFO L495 AbstractCegarLoop]: Abstraction has 50014 states and 63890 transitions. [2023-12-25 10:12:45,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.428571428571429) internal successors, (240), 21 states have internal predecessors, (240), 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) [2023-12-25 10:12:45,052 INFO L276 IsEmpty]: Start isEmpty. Operand 50014 states and 63890 transitions. [2023-12-25 10:12:45,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 10:12:45,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:12:45,060 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:12:45,063 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 (45)] Forceful destruction successful, exit code 0 [2023-12-25 10:12:45,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:45,261 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:12:45,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:12:45,262 INFO L85 PathProgramCache]: Analyzing trace with hash -769353787, now seen corresponding path program 1 times [2023-12-25 10:12:45,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:12:45,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374301044] [2023-12-25 10:12:45,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:12:45,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:45,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:12:45,263 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:12:45,264 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 (46)] Waiting until timeout for monitored process [2023-12-25 10:12:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:12:45,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 10:12:45,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:12:46,640 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:46,640 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:12:47,019 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:47,020 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:12:47,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374301044] [2023-12-25 10:12:47,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [374301044] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:12:47,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:12:47,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 25 [2023-12-25 10:12:47,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786065452] [2023-12-25 10:12:47,020 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:12:47,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-25 10:12:47,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:12:47,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-25 10:12:47,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2023-12-25 10:12:47,022 INFO L87 Difference]: Start difference. First operand 50014 states and 63890 transitions. Second operand has 25 states, 25 states have (on average 9.68) internal successors, (242), 25 states have internal predecessors, (242), 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) [2023-12-25 10:12:49,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:49,992 INFO L93 Difference]: Finished difference Result 129173 states and 164666 transitions. [2023-12-25 10:12:49,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-25 10:12:49,993 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 9.68) internal successors, (242), 25 states have internal predecessors, (242), 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 129 [2023-12-25 10:12:49,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:50,128 INFO L225 Difference]: With dead ends: 129173 [2023-12-25 10:12:50,129 INFO L226 Difference]: Without dead ends: 123148 [2023-12-25 10:12:50,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=541, Invalid=2429, Unknown=0, NotChecked=0, Total=2970 [2023-12-25 10:12:50,168 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 1279 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 4283 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:50,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 4283 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 10:12:50,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123148 states. [2023-12-25 10:12:51,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123148 to 49813. [2023-12-25 10:12:51,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49813 states, 49812 states have (on average 1.2780253754115474) internal successors, (63661), 49812 states have internal predecessors, (63661), 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) [2023-12-25 10:12:51,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49813 states to 49813 states and 63661 transitions. [2023-12-25 10:12:51,226 INFO L78 Accepts]: Start accepts. Automaton has 49813 states and 63661 transitions. Word has length 129 [2023-12-25 10:12:51,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:12:51,226 INFO L495 AbstractCegarLoop]: Abstraction has 49813 states and 63661 transitions. [2023-12-25 10:12:51,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.68) internal successors, (242), 25 states have internal predecessors, (242), 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) [2023-12-25 10:12:51,227 INFO L276 IsEmpty]: Start isEmpty. Operand 49813 states and 63661 transitions. [2023-12-25 10:12:51,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 10:12:51,234 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:12:51,234 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:12:51,237 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 (46)] Ended with exit code 0 [2023-12-25 10:12:51,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:51,435 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:12:51,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:12:51,435 INFO L85 PathProgramCache]: Analyzing trace with hash 883086213, now seen corresponding path program 1 times [2023-12-25 10:12:51,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:12:51,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84573747] [2023-12-25 10:12:51,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:12:51,436 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:51,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:12:51,437 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:12:51,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2023-12-25 10:12:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:12:51,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 10:12:51,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:12:52,272 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:52,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:12:52,588 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:12:52,588 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:12:52,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84573747] [2023-12-25 10:12:52,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84573747] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:12:52,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:12:52,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2023-12-25 10:12:52,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891527439] [2023-12-25 10:12:52,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:12:52,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-25 10:12:52,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:12:52,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-25 10:12:52,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2023-12-25 10:12:52,590 INFO L87 Difference]: Start difference. First operand 49813 states and 63661 transitions. Second operand has 19 states, 19 states have (on average 12.210526315789474) internal successors, (232), 19 states have internal predecessors, (232), 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) [2023-12-25 10:12:54,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:54,561 INFO L93 Difference]: Finished difference Result 152125 states and 194631 transitions. [2023-12-25 10:12:54,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-25 10:12:54,562 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 12.210526315789474) internal successors, (232), 19 states have internal predecessors, (232), 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 129 [2023-12-25 10:12:54,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:54,863 INFO L225 Difference]: With dead ends: 152125 [2023-12-25 10:12:54,863 INFO L226 Difference]: Without dead ends: 132999 [2023-12-25 10:12:54,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=430, Invalid=1462, Unknown=0, NotChecked=0, Total=1892 [2023-12-25 10:12:54,937 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 1932 mSDsluCounter, 2588 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1932 SdHoareTripleChecker+Valid, 2883 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:54,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1932 Valid, 2883 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 10:12:55,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132999 states. [2023-12-25 10:12:55,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132999 to 85689. [2023-12-25 10:12:55,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85689 states, 85688 states have (on average 1.2767482027821866) internal successors, (109402), 85688 states have internal predecessors, (109402), 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) [2023-12-25 10:12:56,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85689 states to 85689 states and 109402 transitions. [2023-12-25 10:12:56,253 INFO L78 Accepts]: Start accepts. Automaton has 85689 states and 109402 transitions. Word has length 129 [2023-12-25 10:12:56,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:12:56,253 INFO L495 AbstractCegarLoop]: Abstraction has 85689 states and 109402 transitions. [2023-12-25 10:12:56,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 12.210526315789474) internal successors, (232), 19 states have internal predecessors, (232), 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) [2023-12-25 10:12:56,253 INFO L276 IsEmpty]: Start isEmpty. Operand 85689 states and 109402 transitions. [2023-12-25 10:12:56,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-25 10:12:56,274 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:12:56,274 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:12:56,280 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 (47)] Forceful destruction successful, exit code 0 [2023-12-25 10:12:56,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:56,481 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:12:56,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:12:56,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1922010786, now seen corresponding path program 1 times [2023-12-25 10:12:56,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:12:56,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408659963] [2023-12-25 10:12:56,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:12:56,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:12:56,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:12:56,485 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:12:56,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2023-12-25 10:12:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:12:56,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 10:12:56,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:12:56,870 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 10:12:56,870 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:12:57,029 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 10:12:57,030 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:12:57,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408659963] [2023-12-25 10:12:57,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408659963] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:12:57,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:12:57,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-25 10:12:57,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495908915] [2023-12-25 10:12:57,030 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:12:57,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 10:12:57,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:12:57,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 10:12:57,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:12:57,031 INFO L87 Difference]: Start difference. First operand 85689 states and 109402 transitions. Second operand has 8 states, 8 states have (on average 31.375) internal successors, (251), 8 states have internal predecessors, (251), 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) [2023-12-25 10:12:57,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:12:57,766 INFO L93 Difference]: Finished difference Result 274294 states and 348573 transitions. [2023-12-25 10:12:57,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 10:12:57,766 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 31.375) internal successors, (251), 8 states have internal predecessors, (251), 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 130 [2023-12-25 10:12:57,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:12:58,214 INFO L225 Difference]: With dead ends: 274294 [2023-12-25 10:12:58,214 INFO L226 Difference]: Without dead ends: 190810 [2023-12-25 10:12:58,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-25 10:12:58,292 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 159 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:12:58,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 746 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:12:58,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190810 states. [2023-12-25 10:13:00,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190810 to 189256. [2023-12-25 10:13:00,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189256 states, 189255 states have (on average 1.2272278143245885) internal successors, (232259), 189255 states have internal predecessors, (232259), 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) [2023-12-25 10:13:00,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189256 states to 189256 states and 232259 transitions. [2023-12-25 10:13:00,692 INFO L78 Accepts]: Start accepts. Automaton has 189256 states and 232259 transitions. Word has length 130 [2023-12-25 10:13:00,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:13:00,692 INFO L495 AbstractCegarLoop]: Abstraction has 189256 states and 232259 transitions. [2023-12-25 10:13:00,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 31.375) internal successors, (251), 8 states have internal predecessors, (251), 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) [2023-12-25 10:13:00,692 INFO L276 IsEmpty]: Start isEmpty. Operand 189256 states and 232259 transitions. [2023-12-25 10:13:00,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-25 10:13:00,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:13:00,938 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:13:00,945 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 (48)] Forceful destruction successful, exit code 0 [2023-12-25 10:13:01,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:13:01,138 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:13:01,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:13:01,139 INFO L85 PathProgramCache]: Analyzing trace with hash -98153781, now seen corresponding path program 1 times [2023-12-25 10:13:01,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:13:01,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1906557025] [2023-12-25 10:13:01,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:13:01,139 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:13:01,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:13:01,141 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:13:01,141 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 (49)] Waiting until timeout for monitored process [2023-12-25 10:13:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:13:01,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 10:13:01,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:13:03,099 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:13:03,099 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:13:04,231 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:13:04,231 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:13:04,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1906557025] [2023-12-25 10:13:04,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1906557025] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:13:04,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:13:04,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 39 [2023-12-25 10:13:04,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053029029] [2023-12-25 10:13:04,231 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:13:04,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-12-25 10:13:04,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:13:04,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-12-25 10:13:04,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1336, Unknown=0, NotChecked=0, Total=1482 [2023-12-25 10:13:04,233 INFO L87 Difference]: Start difference. First operand 189256 states and 232259 transitions. Second operand has 39 states, 39 states have (on average 6.256410256410256) internal successors, (244), 39 states have internal predecessors, (244), 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) [2023-12-25 10:14:00,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:14:00,749 INFO L93 Difference]: Finished difference Result 809088 states and 991879 transitions. [2023-12-25 10:14:00,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 424 states. [2023-12-25 10:14:00,750 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 6.256410256410256) internal successors, (244), 39 states have internal predecessors, (244), 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 130 [2023-12-25 10:14:00,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:14:01,874 INFO L225 Difference]: With dead ends: 809088 [2023-12-25 10:14:01,875 INFO L226 Difference]: Without dead ends: 781407 [2023-12-25 10:14:02,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 453 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90922 ImplicationChecksByTransitivity, 42.4s TimeCoverageRelationStatistics Valid=22793, Invalid=183777, Unknown=0, NotChecked=0, Total=206570 [2023-12-25 10:14:02,260 INFO L413 NwaCegarLoop]: 1065 mSDtfsCounter, 6973 mSDsluCounter, 22705 mSDsCounter, 0 mSdLazyCounter, 9614 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6973 SdHoareTripleChecker+Valid, 23770 SdHoareTripleChecker+Invalid, 9665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 9614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-12-25 10:14:02,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6973 Valid, 23770 Invalid, 9665 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 9614 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2023-12-25 10:14:02,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781407 states. [2023-12-25 10:14:08,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781407 to 261647. [2023-12-25 10:14:08,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261647 states, 261646 states have (on average 1.2284728220572836) internal successors, (321425), 261646 states have internal predecessors, (321425), 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) [2023-12-25 10:14:09,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261647 states to 261647 states and 321425 transitions. [2023-12-25 10:14:09,438 INFO L78 Accepts]: Start accepts. Automaton has 261647 states and 321425 transitions. Word has length 130 [2023-12-25 10:14:09,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:14:09,438 INFO L495 AbstractCegarLoop]: Abstraction has 261647 states and 321425 transitions. [2023-12-25 10:14:09,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 6.256410256410256) internal successors, (244), 39 states have internal predecessors, (244), 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) [2023-12-25 10:14:09,439 INFO L276 IsEmpty]: Start isEmpty. Operand 261647 states and 321425 transitions. [2023-12-25 10:14:09,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-25 10:14:09,452 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:14:09,452 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:14:09,455 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 (49)] Forceful destruction successful, exit code 0 [2023-12-25 10:14:09,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:14:09,653 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:14:09,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:14:09,654 INFO L85 PathProgramCache]: Analyzing trace with hash -2092564545, now seen corresponding path program 1 times [2023-12-25 10:14:09,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:14:09,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211424246] [2023-12-25 10:14:09,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:14:09,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:14:09,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:14:09,655 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:14:09,656 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 (50)] Waiting until timeout for monitored process [2023-12-25 10:14:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:14:09,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:14:09,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:14:09,804 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 10:14:09,804 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:14:09,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:14:09,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211424246] [2023-12-25 10:14:09,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1211424246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:14:09,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:14:09,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:14:09,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009842437] [2023-12-25 10:14:09,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:14:09,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:14:09,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:14:09,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:14:09,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:14:09,805 INFO L87 Difference]: Start difference. First operand 261647 states and 321425 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2023-12-25 10:14:11,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:14:11,340 INFO L93 Difference]: Finished difference Result 481830 states and 592543 transitions. [2023-12-25 10:14:11,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:14:11,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 130 [2023-12-25 10:14:11,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:14:11,661 INFO L225 Difference]: With dead ends: 481830 [2023-12-25 10:14:11,662 INFO L226 Difference]: Without dead ends: 227728 [2023-12-25 10:14:11,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:14:11,775 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 96 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:14:11,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 168 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:14:11,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227728 states. [2023-12-25 10:14:14,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227728 to 224848. [2023-12-25 10:14:14,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224848 states, 224847 states have (on average 1.225371030078231) internal successors, (275521), 224847 states have internal predecessors, (275521), 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) [2023-12-25 10:14:14,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224848 states to 224848 states and 275521 transitions. [2023-12-25 10:14:14,906 INFO L78 Accepts]: Start accepts. Automaton has 224848 states and 275521 transitions. Word has length 130 [2023-12-25 10:14:14,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:14:14,906 INFO L495 AbstractCegarLoop]: Abstraction has 224848 states and 275521 transitions. [2023-12-25 10:14:14,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2023-12-25 10:14:14,906 INFO L276 IsEmpty]: Start isEmpty. Operand 224848 states and 275521 transitions. [2023-12-25 10:14:14,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 10:14:14,912 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:14:14,912 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:14:14,915 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 (50)] Forceful destruction successful, exit code 0 [2023-12-25 10:14:15,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:14:15,114 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:14:15,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:14:15,114 INFO L85 PathProgramCache]: Analyzing trace with hash 2008109077, now seen corresponding path program 1 times [2023-12-25 10:14:15,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:14:15,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423229546] [2023-12-25 10:14:15,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:14:15,115 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:14:15,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:14:15,116 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:14:15,117 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 (51)] Waiting until timeout for monitored process [2023-12-25 10:14:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:14:15,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:14:15,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:14:15,293 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 10:14:15,293 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:14:15,293 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:14:15,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423229546] [2023-12-25 10:14:15,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423229546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:14:15,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:14:15,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:14:15,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435660658] [2023-12-25 10:14:15,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:14:15,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:14:15,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:14:15,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:14:15,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:14:15,295 INFO L87 Difference]: Start difference. First operand 224848 states and 275521 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2023-12-25 10:14:16,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:14:16,273 INFO L93 Difference]: Finished difference Result 329579 states and 404183 transitions. [2023-12-25 10:14:16,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:14:16,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 131 [2023-12-25 10:14:16,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:14:16,709 INFO L225 Difference]: With dead ends: 329579 [2023-12-25 10:14:16,710 INFO L226 Difference]: Without dead ends: 105655 [2023-12-25 10:14:16,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:14:16,740 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 100 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:14:16,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 128 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:14:16,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105655 states. [2023-12-25 10:14:17,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105655 to 103475. [2023-12-25 10:14:17,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103475 states, 103474 states have (on average 1.2074627442642596) internal successors, (124941), 103474 states have internal predecessors, (124941), 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) [2023-12-25 10:14:18,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103475 states to 103475 states and 124941 transitions. [2023-12-25 10:14:18,155 INFO L78 Accepts]: Start accepts. Automaton has 103475 states and 124941 transitions. Word has length 131 [2023-12-25 10:14:18,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:14:18,155 INFO L495 AbstractCegarLoop]: Abstraction has 103475 states and 124941 transitions. [2023-12-25 10:14:18,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2023-12-25 10:14:18,155 INFO L276 IsEmpty]: Start isEmpty. Operand 103475 states and 124941 transitions. [2023-12-25 10:14:18,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 10:14:18,159 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:14:18,159 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:14:18,162 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 (51)] Forceful destruction successful, exit code 0 [2023-12-25 10:14:18,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:14:18,359 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:14:18,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:14:18,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1869860890, now seen corresponding path program 1 times [2023-12-25 10:14:18,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:14:18,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952096504] [2023-12-25 10:14:18,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:14:18,360 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:14:18,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:14:18,361 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:14:18,363 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 (52)] Waiting until timeout for monitored process [2023-12-25 10:14:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:14:18,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:14:18,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:14:18,524 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 10:14:18,524 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:14:18,524 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:14:18,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1952096504] [2023-12-25 10:14:18,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1952096504] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:14:18,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:14:18,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:14:18,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391042026] [2023-12-25 10:14:18,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:14:18,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:14:18,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:14:18,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:14:18,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:14:18,525 INFO L87 Difference]: Start difference. First operand 103475 states and 124941 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2023-12-25 10:14:18,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:14:18,844 INFO L93 Difference]: Finished difference Result 162690 states and 196619 transitions. [2023-12-25 10:14:18,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:14:18,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 131 [2023-12-25 10:14:18,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:14:18,914 INFO L225 Difference]: With dead ends: 162690 [2023-12-25 10:14:18,915 INFO L226 Difference]: Without dead ends: 60873 [2023-12-25 10:14:18,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:14:18,963 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 96 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:14:18,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 135 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:14:19,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60873 states. [2023-12-25 10:14:19,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60873 to 60873. [2023-12-25 10:14:19,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60873 states, 60872 states have (on average 1.1927487186226837) internal successors, (72605), 60872 states have internal predecessors, (72605), 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) [2023-12-25 10:14:20,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60873 states to 60873 states and 72605 transitions. [2023-12-25 10:14:20,053 INFO L78 Accepts]: Start accepts. Automaton has 60873 states and 72605 transitions. Word has length 131 [2023-12-25 10:14:20,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:14:20,053 INFO L495 AbstractCegarLoop]: Abstraction has 60873 states and 72605 transitions. [2023-12-25 10:14:20,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2023-12-25 10:14:20,054 INFO L276 IsEmpty]: Start isEmpty. Operand 60873 states and 72605 transitions. [2023-12-25 10:14:20,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 10:14:20,057 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:14:20,057 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:14:20,064 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 (52)] Forceful destruction successful, exit code 0 [2023-12-25 10:14:20,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:14:20,261 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:14:20,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:14:20,261 INFO L85 PathProgramCache]: Analyzing trace with hash -800683229, now seen corresponding path program 1 times [2023-12-25 10:14:20,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:14:20,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497024000] [2023-12-25 10:14:20,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:14:20,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:14:20,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:14:20,264 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:14:20,280 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 (53)] Waiting until timeout for monitored process [2023-12-25 10:14:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:14:20,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:14:20,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:14:20,475 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-25 10:14:20,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:14:20,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:14:20,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497024000] [2023-12-25 10:14:20,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497024000] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:14:20,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:14:20,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:14:20,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724470158] [2023-12-25 10:14:20,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:14:20,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:14:20,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:14:20,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:14:20,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:14:20,480 INFO L87 Difference]: Start difference. First operand 60873 states and 72605 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2023-12-25 10:14:20,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:14:20,786 INFO L93 Difference]: Finished difference Result 103957 states and 124159 transitions. [2023-12-25 10:14:20,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:14:20,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 131 [2023-12-25 10:14:20,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:14:20,842 INFO L225 Difference]: With dead ends: 103957 [2023-12-25 10:14:20,842 INFO L226 Difference]: Without dead ends: 43713 [2023-12-25 10:14:20,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:14:20,873 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 99 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:14:20,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 161 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 10:14:20,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43713 states. [2023-12-25 10:14:21,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43713 to 43713. [2023-12-25 10:14:21,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43713 states, 43712 states have (on average 1.1774569912152268) internal successors, (51469), 43712 states have internal predecessors, (51469), 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) [2023-12-25 10:14:21,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43713 states to 43713 states and 51469 transitions. [2023-12-25 10:14:21,413 INFO L78 Accepts]: Start accepts. Automaton has 43713 states and 51469 transitions. Word has length 131 [2023-12-25 10:14:21,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:14:21,413 INFO L495 AbstractCegarLoop]: Abstraction has 43713 states and 51469 transitions. [2023-12-25 10:14:21,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2023-12-25 10:14:21,413 INFO L276 IsEmpty]: Start isEmpty. Operand 43713 states and 51469 transitions. [2023-12-25 10:14:21,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-25 10:14:21,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:14:21,416 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:14:21,419 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 (53)] Forceful destruction successful, exit code 0 [2023-12-25 10:14:21,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:14:21,617 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:14:21,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:14:21,617 INFO L85 PathProgramCache]: Analyzing trace with hash 162732097, now seen corresponding path program 1 times [2023-12-25 10:14:21,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:14:21,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876403480] [2023-12-25 10:14:21,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:14:21,618 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:14:21,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:14:21,619 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:14:21,620 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 (54)] Waiting until timeout for monitored process [2023-12-25 10:14:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:14:21,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 10:14:21,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:14:21,794 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 10:14:21,794 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 10:14:21,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:14:21,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876403480] [2023-12-25 10:14:21,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [876403480] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 10:14:21,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 10:14:21,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 10:14:21,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781073033] [2023-12-25 10:14:21,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 10:14:21,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 10:14:21,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:14:21,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 10:14:21,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:14:21,795 INFO L87 Difference]: Start difference. First operand 43713 states and 51469 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2023-12-25 10:14:21,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:14:21,906 INFO L93 Difference]: Finished difference Result 61478 states and 72203 transitions. [2023-12-25 10:14:21,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 10:14:21,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 159 [2023-12-25 10:14:21,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:14:21,924 INFO L225 Difference]: With dead ends: 61478 [2023-12-25 10:14:21,924 INFO L226 Difference]: Without dead ends: 20479 [2023-12-25 10:14:21,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 10:14:21,942 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 43 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:14:21,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 244 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 10:14:21,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20479 states. [2023-12-25 10:14:22,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20479 to 20477. [2023-12-25 10:14:22,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20477 states, 20476 states have (on average 1.1448036725923032) internal successors, (23441), 20476 states have internal predecessors, (23441), 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) [2023-12-25 10:14:22,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20477 states to 20477 states and 23441 transitions. [2023-12-25 10:14:22,323 INFO L78 Accepts]: Start accepts. Automaton has 20477 states and 23441 transitions. Word has length 159 [2023-12-25 10:14:22,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:14:22,323 INFO L495 AbstractCegarLoop]: Abstraction has 20477 states and 23441 transitions. [2023-12-25 10:14:22,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2023-12-25 10:14:22,323 INFO L276 IsEmpty]: Start isEmpty. Operand 20477 states and 23441 transitions. [2023-12-25 10:14:22,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-25 10:14:22,327 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:14:22,327 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:14:22,330 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 (54)] Forceful destruction successful, exit code 0 [2023-12-25 10:14:22,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:14:22,528 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:14:22,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:14:22,528 INFO L85 PathProgramCache]: Analyzing trace with hash 850531140, now seen corresponding path program 1 times [2023-12-25 10:14:22,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:14:22,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947652567] [2023-12-25 10:14:22,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:14:22,529 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:14:22,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:14:22,530 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:14:22,538 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 (55)] Waiting until timeout for monitored process [2023-12-25 10:14:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:14:22,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 10:14:22,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:14:25,798 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 19 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:14:25,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:14:27,628 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 19 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:14:27,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:14:27,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947652567] [2023-12-25 10:14:27,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1947652567] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:14:27,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:14:27,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 41 [2023-12-25 10:14:27,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825269806] [2023-12-25 10:14:27,629 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:14:27,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-12-25 10:14:27,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:14:27,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-12-25 10:14:27,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1510, Unknown=0, NotChecked=0, Total=1640 [2023-12-25 10:14:27,630 INFO L87 Difference]: Start difference. First operand 20477 states and 23441 transitions. Second operand has 41 states, 41 states have (on average 8.975609756097562) internal successors, (368), 41 states have internal predecessors, (368), 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) [2023-12-25 10:16:42,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:16:42,253 INFO L93 Difference]: Finished difference Result 75396 states and 86292 transitions. [2023-12-25 10:16:42,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-12-25 10:16:42,253 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 8.975609756097562) internal successors, (368), 41 states have internal predecessors, (368), 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 189 [2023-12-25 10:16:42,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:16:42,311 INFO L225 Difference]: With dead ends: 75396 [2023-12-25 10:16:42,312 INFO L226 Difference]: Without dead ends: 71378 [2023-12-25 10:16:42,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7657 ImplicationChecksByTransitivity, 131.7s TimeCoverageRelationStatistics Valid=2866, Invalid=22574, Unknown=0, NotChecked=0, Total=25440 [2023-12-25 10:16:42,320 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 3501 mSDsluCounter, 10180 mSDsCounter, 0 mSdLazyCounter, 3449 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3501 SdHoareTripleChecker+Valid, 10644 SdHoareTripleChecker+Invalid, 3458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-25 10:16:42,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3501 Valid, 10644 Invalid, 3458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 3449 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-25 10:16:42,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71378 states. [2023-12-25 10:16:42,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71378 to 37349. [2023-12-25 10:16:42,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37349 states, 37348 states have (on average 1.1455499625147263) internal successors, (42784), 37348 states have internal predecessors, (42784), 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) [2023-12-25 10:16:42,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37349 states to 37349 states and 42784 transitions. [2023-12-25 10:16:42,773 INFO L78 Accepts]: Start accepts. Automaton has 37349 states and 42784 transitions. Word has length 189 [2023-12-25 10:16:42,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:16:42,773 INFO L495 AbstractCegarLoop]: Abstraction has 37349 states and 42784 transitions. [2023-12-25 10:16:42,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 8.975609756097562) internal successors, (368), 41 states have internal predecessors, (368), 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) [2023-12-25 10:16:42,773 INFO L276 IsEmpty]: Start isEmpty. Operand 37349 states and 42784 transitions. [2023-12-25 10:16:42,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-12-25 10:16:42,780 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:16:42,781 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:16:42,784 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 (55)] Forceful destruction successful, exit code 0 [2023-12-25 10:16:42,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:16:42,981 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:16:42,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:16:42,982 INFO L85 PathProgramCache]: Analyzing trace with hash -571180521, now seen corresponding path program 1 times [2023-12-25 10:16:42,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:16:42,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307773438] [2023-12-25 10:16:42,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:16:42,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:16:42,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:16:42,984 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:16:42,984 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 (56)] Waiting until timeout for monitored process [2023-12-25 10:16:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:16:43,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 10:16:43,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:16:44,281 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 76 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-25 10:16:44,281 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:16:44,777 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 76 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-25 10:16:44,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:16:44,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1307773438] [2023-12-25 10:16:44,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1307773438] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:16:44,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:16:44,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 23 [2023-12-25 10:16:44,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223943030] [2023-12-25 10:16:44,778 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:16:44,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-25 10:16:44,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:16:44,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-25 10:16:44,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2023-12-25 10:16:44,779 INFO L87 Difference]: Start difference. First operand 37349 states and 42784 transitions. Second operand has 23 states, 23 states have (on average 12.043478260869565) internal successors, (277), 23 states have internal predecessors, (277), 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) [2023-12-25 10:16:46,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:16:46,867 INFO L93 Difference]: Finished difference Result 51444 states and 58675 transitions. [2023-12-25 10:16:46,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-25 10:16:46,868 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.043478260869565) internal successors, (277), 23 states have internal predecessors, (277), 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 190 [2023-12-25 10:16:46,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:16:46,905 INFO L225 Difference]: With dead ends: 51444 [2023-12-25 10:16:46,905 INFO L226 Difference]: Without dead ends: 44239 [2023-12-25 10:16:46,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=366, Invalid=1356, Unknown=0, NotChecked=0, Total=1722 [2023-12-25 10:16:46,917 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 1002 mSDsluCounter, 3997 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 4348 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 10:16:46,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1002 Valid, 4348 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 10:16:46,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44239 states. [2023-12-25 10:16:47,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44239 to 33725. [2023-12-25 10:16:47,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33725 states, 33724 states have (on average 1.1421836081129166) internal successors, (38519), 33724 states have internal predecessors, (38519), 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) [2023-12-25 10:16:47,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33725 states to 33725 states and 38519 transitions. [2023-12-25 10:16:47,193 INFO L78 Accepts]: Start accepts. Automaton has 33725 states and 38519 transitions. Word has length 190 [2023-12-25 10:16:47,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:16:47,193 INFO L495 AbstractCegarLoop]: Abstraction has 33725 states and 38519 transitions. [2023-12-25 10:16:47,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.043478260869565) internal successors, (277), 23 states have internal predecessors, (277), 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) [2023-12-25 10:16:47,193 INFO L276 IsEmpty]: Start isEmpty. Operand 33725 states and 38519 transitions. [2023-12-25 10:16:47,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-12-25 10:16:47,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:16:47,201 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:16:47,206 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 (56)] Forceful destruction successful, exit code 0 [2023-12-25 10:16:47,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:16:47,407 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:16:47,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:16:47,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1302291756, now seen corresponding path program 1 times [2023-12-25 10:16:47,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:16:47,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484843950] [2023-12-25 10:16:47,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:16:47,408 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:16:47,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:16:47,409 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:16:47,411 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 (57)] Waiting until timeout for monitored process [2023-12-25 10:16:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:16:47,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-25 10:16:47,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:16:48,380 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 19 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:16:48,380 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:16:49,011 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 19 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:16:49,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:16:49,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484843950] [2023-12-25 10:16:49,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [484843950] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:16:49,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:16:49,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 32 [2023-12-25 10:16:49,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127286848] [2023-12-25 10:16:49,011 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:16:49,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-25 10:16:49,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:16:49,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-25 10:16:49,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=908, Unknown=0, NotChecked=0, Total=992 [2023-12-25 10:16:49,013 INFO L87 Difference]: Start difference. First operand 33725 states and 38519 transitions. Second operand has 32 states, 32 states have (on average 9.21875) internal successors, (295), 32 states have internal predecessors, (295), 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) [2023-12-25 10:16:54,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:16:54,667 INFO L93 Difference]: Finished difference Result 42686 states and 48775 transitions. [2023-12-25 10:16:54,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-12-25 10:16:54,667 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 9.21875) internal successors, (295), 32 states have internal predecessors, (295), 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 190 [2023-12-25 10:16:54,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:16:54,703 INFO L225 Difference]: With dead ends: 42686 [2023-12-25 10:16:54,703 INFO L226 Difference]: Without dead ends: 40304 [2023-12-25 10:16:54,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 348 SyntacticMatches, 3 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 10 DeprecatedPredicates, 2079 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1169, Invalid=7021, Unknown=0, NotChecked=0, Total=8190 [2023-12-25 10:16:54,715 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 1260 mSDsluCounter, 4889 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 5262 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-25 10:16:54,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 5262 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-25 10:16:54,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40304 states. [2023-12-25 10:16:54,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40304 to 32560. [2023-12-25 10:16:54,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32560 states, 32559 states have (on average 1.1416812555668172) internal successors, (37172), 32559 states have internal predecessors, (37172), 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) [2023-12-25 10:16:54,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32560 states to 32560 states and 37172 transitions. [2023-12-25 10:16:54,999 INFO L78 Accepts]: Start accepts. Automaton has 32560 states and 37172 transitions. Word has length 190 [2023-12-25 10:16:54,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:16:54,999 INFO L495 AbstractCegarLoop]: Abstraction has 32560 states and 37172 transitions. [2023-12-25 10:16:55,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 9.21875) internal successors, (295), 32 states have internal predecessors, (295), 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) [2023-12-25 10:16:55,000 INFO L276 IsEmpty]: Start isEmpty. Operand 32560 states and 37172 transitions. [2023-12-25 10:16:55,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-12-25 10:16:55,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:16:55,010 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:16:55,020 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 (57)] Forceful destruction successful, exit code 0 [2023-12-25 10:16:55,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:16:55,215 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:16:55,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:16:55,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1687336928, now seen corresponding path program 1 times [2023-12-25 10:16:55,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:16:55,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947727850] [2023-12-25 10:16:55,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:16:55,216 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:16:55,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:16:55,217 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:16:55,217 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 (58)] Waiting until timeout for monitored process [2023-12-25 10:16:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:16:55,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 55 conjunts are in the unsatisfiable core [2023-12-25 10:16:55,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:17:00,079 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 28 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:17:00,079 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:17:04,879 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 19 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:17:04,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:17:04,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947727850] [2023-12-25 10:17:04,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947727850] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:17:04,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:17:04,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 41] total 83 [2023-12-25 10:17:04,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474038933] [2023-12-25 10:17:04,880 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:17:04,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2023-12-25 10:17:04,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:17:04,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2023-12-25 10:17:04,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=615, Invalid=6191, Unknown=0, NotChecked=0, Total=6806 [2023-12-25 10:17:04,882 INFO L87 Difference]: Start difference. First operand 32560 states and 37172 transitions. Second operand has 83 states, 83 states have (on average 4.409638554216867) internal successors, (366), 83 states have internal predecessors, (366), 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) [2023-12-25 10:19:34,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:19:34,704 INFO L93 Difference]: Finished difference Result 53157 states and 60254 transitions. [2023-12-25 10:19:34,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 412 states. [2023-12-25 10:19:34,704 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 83 states have (on average 4.409638554216867) internal successors, (366), 83 states have internal predecessors, (366), 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 190 [2023-12-25 10:19:34,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:19:34,743 INFO L225 Difference]: With dead ends: 53157 [2023-12-25 10:19:34,744 INFO L226 Difference]: Without dead ends: 49647 [2023-12-25 10:19:34,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 788 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 491 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90471 ImplicationChecksByTransitivity, 135.1s TimeCoverageRelationStatistics Valid=16422, Invalid=226134, Unknown=0, NotChecked=0, Total=242556 [2023-12-25 10:19:34,759 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 7920 mSDsluCounter, 18656 mSDsCounter, 0 mSdLazyCounter, 14622 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7920 SdHoareTripleChecker+Valid, 19109 SdHoareTripleChecker+Invalid, 14953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 14622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2023-12-25 10:19:34,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7920 Valid, 19109 Invalid, 14953 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [331 Valid, 14622 Invalid, 0 Unknown, 0 Unchecked, 19.3s Time] [2023-12-25 10:19:34,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49647 states. [2023-12-25 10:19:35,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49647 to 35489. [2023-12-25 10:19:35,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35489 states, 35488 states have (on average 1.1412590171325518) internal successors, (40501), 35488 states have internal predecessors, (40501), 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) [2023-12-25 10:19:35,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35489 states to 35489 states and 40501 transitions. [2023-12-25 10:19:35,096 INFO L78 Accepts]: Start accepts. Automaton has 35489 states and 40501 transitions. Word has length 190 [2023-12-25 10:19:35,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:19:35,096 INFO L495 AbstractCegarLoop]: Abstraction has 35489 states and 40501 transitions. [2023-12-25 10:19:35,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 4.409638554216867) internal successors, (366), 83 states have internal predecessors, (366), 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) [2023-12-25 10:19:35,096 INFO L276 IsEmpty]: Start isEmpty. Operand 35489 states and 40501 transitions. [2023-12-25 10:19:35,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-12-25 10:19:35,103 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:19:35,103 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:19:35,107 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 (58)] Forceful destruction successful, exit code 0 [2023-12-25 10:19:35,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:19:35,304 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:19:35,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:19:35,304 INFO L85 PathProgramCache]: Analyzing trace with hash -354933868, now seen corresponding path program 1 times [2023-12-25 10:19:35,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:19:35,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926117288] [2023-12-25 10:19:35,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:19:35,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:19:35,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:19:35,306 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:19:35,307 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 (59)] Waiting until timeout for monitored process [2023-12-25 10:19:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:19:35,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-25 10:19:35,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:19:38,058 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 47 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:19:38,059 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:19:39,084 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 47 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:19:39,084 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:19:39,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926117288] [2023-12-25 10:19:39,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [926117288] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:19:39,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:19:39,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18] total 38 [2023-12-25 10:19:39,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818783183] [2023-12-25 10:19:39,085 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:19:39,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-12-25 10:19:39,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:19:39,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-12-25 10:19:39,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1221, Unknown=0, NotChecked=0, Total=1406 [2023-12-25 10:19:39,086 INFO L87 Difference]: Start difference. First operand 35489 states and 40501 transitions. Second operand has 38 states, 38 states have (on average 9.31578947368421) internal successors, (354), 38 states have internal predecessors, (354), 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) [2023-12-25 10:20:08,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:20:08,179 INFO L93 Difference]: Finished difference Result 76015 states and 86238 transitions. [2023-12-25 10:20:08,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2023-12-25 10:20:08,181 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 9.31578947368421) internal successors, (354), 38 states have internal predecessors, (354), 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 190 [2023-12-25 10:20:08,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:20:08,238 INFO L225 Difference]: With dead ends: 76015 [2023-12-25 10:20:08,239 INFO L226 Difference]: Without dead ends: 55667 [2023-12-25 10:20:08,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2998 ImplicationChecksByTransitivity, 25.0s TimeCoverageRelationStatistics Valid=2621, Invalid=10489, Unknown=0, NotChecked=0, Total=13110 [2023-12-25 10:20:08,260 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 4111 mSDsluCounter, 7534 mSDsCounter, 0 mSdLazyCounter, 2480 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4111 SdHoareTripleChecker+Valid, 7912 SdHoareTripleChecker+Invalid, 2530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-25 10:20:08,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4111 Valid, 7912 Invalid, 2530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2480 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-25 10:20:08,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55667 states. [2023-12-25 10:20:08,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55667 to 30131. [2023-12-25 10:20:08,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30131 states, 30130 states have (on average 1.1352140723531363) internal successors, (34204), 30130 states have internal predecessors, (34204), 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) [2023-12-25 10:20:08,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30131 states to 30131 states and 34204 transitions. [2023-12-25 10:20:08,612 INFO L78 Accepts]: Start accepts. Automaton has 30131 states and 34204 transitions. Word has length 190 [2023-12-25 10:20:08,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:20:08,612 INFO L495 AbstractCegarLoop]: Abstraction has 30131 states and 34204 transitions. [2023-12-25 10:20:08,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 9.31578947368421) internal successors, (354), 38 states have internal predecessors, (354), 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) [2023-12-25 10:20:08,613 INFO L276 IsEmpty]: Start isEmpty. Operand 30131 states and 34204 transitions. [2023-12-25 10:20:08,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-12-25 10:20:08,619 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:20:08,619 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:20:08,622 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 (59)] Forceful destruction successful, exit code 0 [2023-12-25 10:20:08,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:20:08,819 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:20:08,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:20:08,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1426537503, now seen corresponding path program 1 times [2023-12-25 10:20:08,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:20:08,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80159692] [2023-12-25 10:20:08,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:20:08,820 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:20:08,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:20:08,821 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:20:08,822 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 (60)] Waiting until timeout for monitored process [2023-12-25 10:20:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:20:08,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-25 10:20:09,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:20:11,903 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 37 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:20:11,903 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:20:13,379 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 37 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:20:13,379 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:20:13,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80159692] [2023-12-25 10:20:13,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80159692] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:20:13,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:20:13,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 43 [2023-12-25 10:20:13,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850274468] [2023-12-25 10:20:13,380 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:20:13,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-12-25 10:20:13,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:20:13,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-12-25 10:20:13,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=1575, Unknown=0, NotChecked=0, Total=1806 [2023-12-25 10:20:13,381 INFO L87 Difference]: Start difference. First operand 30131 states and 34204 transitions. Second operand has 43 states, 43 states have (on average 8.325581395348838) internal successors, (358), 43 states have internal predecessors, (358), 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) [2023-12-25 10:21:00,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 10:21:00,882 INFO L93 Difference]: Finished difference Result 88501 states and 101464 transitions. [2023-12-25 10:21:00,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2023-12-25 10:21:00,883 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 8.325581395348838) internal successors, (358), 43 states have internal predecessors, (358), 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 190 [2023-12-25 10:21:00,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 10:21:00,951 INFO L225 Difference]: With dead ends: 88501 [2023-12-25 10:21:00,951 INFO L226 Difference]: Without dead ends: 71364 [2023-12-25 10:21:00,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4202 ImplicationChecksByTransitivity, 45.4s TimeCoverageRelationStatistics Valid=3383, Invalid=13909, Unknown=0, NotChecked=0, Total=17292 [2023-12-25 10:21:00,977 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 4104 mSDsluCounter, 7471 mSDsCounter, 0 mSdLazyCounter, 2169 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4104 SdHoareTripleChecker+Valid, 7833 SdHoareTripleChecker+Invalid, 2196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-25 10:21:00,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4104 Valid, 7833 Invalid, 2196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2169 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-25 10:21:01,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71364 states. [2023-12-25 10:21:01,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71364 to 40882. [2023-12-25 10:21:01,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40882 states, 40881 states have (on average 1.1332403806169125) internal successors, (46328), 40881 states have internal predecessors, (46328), 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) [2023-12-25 10:21:01,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40882 states to 40882 states and 46328 transitions. [2023-12-25 10:21:01,432 INFO L78 Accepts]: Start accepts. Automaton has 40882 states and 46328 transitions. Word has length 190 [2023-12-25 10:21:01,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 10:21:01,432 INFO L495 AbstractCegarLoop]: Abstraction has 40882 states and 46328 transitions. [2023-12-25 10:21:01,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 8.325581395348838) internal successors, (358), 43 states have internal predecessors, (358), 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) [2023-12-25 10:21:01,432 INFO L276 IsEmpty]: Start isEmpty. Operand 40882 states and 46328 transitions. [2023-12-25 10:21:01,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-12-25 10:21:01,439 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 10:21:01,439 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 10:21:01,443 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 (60)] Forceful destruction successful, exit code 0 [2023-12-25 10:21:01,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:21:01,640 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-25 10:21:01,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 10:21:01,640 INFO L85 PathProgramCache]: Analyzing trace with hash -857605765, now seen corresponding path program 1 times [2023-12-25 10:21:01,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 10:21:01,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684130927] [2023-12-25 10:21:01,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 10:21:01,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 10:21:01,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 10:21:01,642 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 10:21:01,644 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 (61)] Waiting until timeout for monitored process [2023-12-25 10:21:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 10:21:01,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-25 10:21:01,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 10:21:03,547 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 46 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:21:03,547 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 10:21:04,271 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 46 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 10:21:04,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 10:21:04,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684130927] [2023-12-25 10:21:04,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684130927] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 10:21:04,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 10:21:04,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19] total 39 [2023-12-25 10:21:04,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95522918] [2023-12-25 10:21:04,271 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 10:21:04,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-12-25 10:21:04,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 10:21:04,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-12-25 10:21:04,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1363, Unknown=0, NotChecked=0, Total=1482 [2023-12-25 10:21:04,273 INFO L87 Difference]: Start difference. First operand 40882 states and 46328 transitions. Second operand has 39 states, 39 states have (on average 9.076923076923077) internal successors, (354), 39 states have internal predecessors, (354), 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)