/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_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 03:36:58,439 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 03:36:58,519 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 03:36:58,526 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 03:36:58,526 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 03:36:58,550 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 03:36:58,550 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 03:36:58,550 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 03:36:58,551 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 03:36:58,554 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 03:36:58,554 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 03:36:58,555 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 03:36:58,555 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 03:36:58,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 03:36:58,556 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 03:36:58,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 03:36:58,557 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 03:36:58,557 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 03:36:58,557 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 03:36:58,557 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 03:36:58,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 03:36:58,559 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 03:36:58,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 03:36:58,559 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 03:36:58,559 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 03:36:58,559 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 03:36:58,559 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 03:36:58,559 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 03:36:58,560 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 03:36:58,560 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 03:36:58,561 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 03:36:58,561 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 03:36:58,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:36:58,561 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 03:36:58,561 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 03:36:58,562 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 03:36:58,562 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 03:36:58,562 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 03:36:58,562 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 03:36:58,562 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 03:36:58,562 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 03:36:58,562 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 03:36:58,563 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 03:36:58,563 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 03:36:58,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 03:36:58,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 03:36:58,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 03:36:58,768 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 03:36:58,768 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 03:36:58,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-20 03:36:59,824 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 03:37:00,135 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 03:37:00,136 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-20 03:37:00,165 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cb299b4c/04a421750c2244ae9f7bd266a61721e7/FLAGdf6adf7ef [2023-12-20 03:37:00,177 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cb299b4c/04a421750c2244ae9f7bd266a61721e7 [2023-12-20 03:37:00,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 03:37:00,180 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 03:37:00,182 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 03:37:00,182 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 03:37:00,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 03:37:00,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:37:00" (1/1) ... [2023-12-20 03:37:00,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca6b9e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:37:00, skipping insertion in model container [2023-12-20 03:37:00,187 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:37:00" (1/1) ... [2023-12-20 03:37:00,360 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 03:37:00,801 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[69402,69415] [2023-12-20 03:37:00,862 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[100988,101001] [2023-12-20 03:37:00,891 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[116766,116779] [2023-12-20 03:37:00,906 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[124651,124664] [2023-12-20 03:37:00,914 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[128577,128590] [2023-12-20 03:37:00,922 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132299,132312] [2023-12-20 03:37:00,997 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[163377,163390] [2023-12-20 03:37:01,030 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[178940,178953] [2023-12-20 03:37:01,044 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[186820,186833] [2023-12-20 03:37:01,052 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[190741,190754] [2023-12-20 03:37:01,059 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[194458,194471] [2023-12-20 03:37:01,088 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[211203,211216] [2023-12-20 03:37:01,102 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[219083,219096] [2023-12-20 03:37:01,132 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[223004,223017] [2023-12-20 03:37:01,139 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[226721,226734] [2023-12-20 03:37:01,147 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231221,231234] [2023-12-20 03:37:01,154 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[234989,235002] [2023-12-20 03:37:01,161 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[238910,238923] [2023-12-20 03:37:01,168 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[242627,242640] [2023-12-20 03:37:01,175 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[246748,246761] [2023-12-20 03:37:01,182 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[250481,250494] [2023-12-20 03:37:01,189 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[254398,254411] [2023-12-20 03:37:01,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:37:01,239 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 03:37:01,366 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[69402,69415] [2023-12-20 03:37:01,409 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[100988,101001] [2023-12-20 03:37:01,431 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[116766,116779] [2023-12-20 03:37:01,443 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[124651,124664] [2023-12-20 03:37:01,449 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[128577,128590] [2023-12-20 03:37:01,455 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132299,132312] [2023-12-20 03:37:01,495 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[163377,163390] [2023-12-20 03:37:01,517 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[178940,178953] [2023-12-20 03:37:01,529 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[186820,186833] [2023-12-20 03:37:01,535 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[190741,190754] [2023-12-20 03:37:01,541 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[194458,194471] [2023-12-20 03:37:01,605 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[211203,211216] [2023-12-20 03:37:01,617 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[219083,219096] [2023-12-20 03:37:01,623 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[223004,223017] [2023-12-20 03:37:01,630 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[226721,226734] [2023-12-20 03:37:01,637 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231221,231234] [2023-12-20 03:37:01,643 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[234989,235002] [2023-12-20 03:37:01,649 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[238910,238923] [2023-12-20 03:37:01,655 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[242627,242640] [2023-12-20 03:37:01,662 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[246748,246761] [2023-12-20 03:37:01,668 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[250481,250494] [2023-12-20 03:37:01,675 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.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[254398,254411] [2023-12-20 03:37:01,695 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:37:01,716 INFO L206 MainTranslator]: Completed translation [2023-12-20 03:37:01,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:37:01 WrapperNode [2023-12-20 03:37:01,716 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 03:37:01,717 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 03:37:01,717 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 03:37:01,717 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 03:37:01,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:37:01" (1/1) ... [2023-12-20 03:37:01,787 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:37:01" (1/1) ... [2023-12-20 03:37:01,932 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12196 [2023-12-20 03:37:01,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 03:37:01,933 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 03:37:01,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 03:37:01,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 03:37:01,941 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:37:01" (1/1) ... [2023-12-20 03:37:01,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:37:01" (1/1) ... [2023-12-20 03:37:01,979 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:37:01" (1/1) ... [2023-12-20 03:37:02,045 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]. [2023-12-20 03:37:02,046 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:37:01" (1/1) ... [2023-12-20 03:37:02,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:37:01" (1/1) ... [2023-12-20 03:37:02,116 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:37:01" (1/1) ... [2023-12-20 03:37:02,149 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:37:01" (1/1) ... [2023-12-20 03:37:02,245 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:37:01" (1/1) ... [2023-12-20 03:37:02,262 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:37:01" (1/1) ... [2023-12-20 03:37:02,321 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 03:37:02,322 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 03:37:02,322 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 03:37:02,322 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 03:37:02,323 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:37:01" (1/1) ... [2023-12-20 03:37:02,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:37:02,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:37:02,345 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) [2023-12-20 03:37:02,365 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 [2023-12-20 03:37:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 03:37:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 03:37:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 03:37:02,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 03:37:02,745 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 03:37:02,747 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 03:37:06,020 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 03:37:06,095 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 03:37:06,095 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-20 03:37:06,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:37:06 BoogieIcfgContainer [2023-12-20 03:37:06,096 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 03:37:06,098 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 03:37:06,098 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 03:37:06,100 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 03:37:06,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 03:37:00" (1/3) ... [2023-12-20 03:37:06,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7788bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:37:06, skipping insertion in model container [2023-12-20 03:37:06,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:37:01" (2/3) ... [2023-12-20 03:37:06,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7788bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:37:06, skipping insertion in model container [2023-12-20 03:37:06,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:37:06" (3/3) ... [2023-12-20 03:37:06,102 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-20 03:37:06,114 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 03:37:06,115 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-12-20 03:37:06,192 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 03:37:06,198 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;@3296bd60, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 03:37:06,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-12-20 03:37:06,209 INFO L276 IsEmpty]: Start isEmpty. Operand has 2346 states, 2323 states have (on average 1.8222126560482135) internal successors, (4233), 2345 states have internal predecessors, (4233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:06,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-20 03:37:06,233 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:06,234 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] [2023-12-20 03:37:06,234 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:06,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:06,239 INFO L85 PathProgramCache]: Analyzing trace with hash 474104121, now seen corresponding path program 1 times [2023-12-20 03:37:06,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:06,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691170032] [2023-12-20 03:37:06,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:06,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:06,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:06,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:06,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691170032] [2023-12-20 03:37:06,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691170032] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:06,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:06,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:37:06,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170663913] [2023-12-20 03:37:06,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:06,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:37:06,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:06,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:37:06,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:37:06,732 INFO L87 Difference]: Start difference. First operand has 2346 states, 2323 states have (on average 1.8222126560482135) internal successors, (4233), 2345 states have internal predecessors, (4233), 0 states have call successors, (0), 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 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:07,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:07,921 INFO L93 Difference]: Finished difference Result 2799 states and 4973 transitions. [2023-12-20 03:37:07,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:37:07,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2023-12-20 03:37:07,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:07,953 INFO L225 Difference]: With dead ends: 2799 [2023-12-20 03:37:07,953 INFO L226 Difference]: Without dead ends: 1620 [2023-12-20 03:37:07,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:37:07,962 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 8452 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8452 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:07,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8452 Valid, 1567 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:37:07,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2023-12-20 03:37:08,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1620. [2023-12-20 03:37:08,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 1598 states have (on average 1.3222778473091363) internal successors, (2113), 1619 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:08,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2113 transitions. [2023-12-20 03:37:08,041 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2113 transitions. Word has length 85 [2023-12-20 03:37:08,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:08,041 INFO L495 AbstractCegarLoop]: Abstraction has 1620 states and 2113 transitions. [2023-12-20 03:37:08,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:08,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2113 transitions. [2023-12-20 03:37:08,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-20 03:37:08,046 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:08,046 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:08,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 03:37:08,046 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:08,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:08,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1379625602, now seen corresponding path program 1 times [2023-12-20 03:37:08,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:08,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707543960] [2023-12-20 03:37:08,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:08,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:08,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:08,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:08,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707543960] [2023-12-20 03:37:08,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707543960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:08,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:08,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:37:08,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371351061] [2023-12-20 03:37:08,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:08,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:37:08,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:08,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:37:08,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:37:08,238 INFO L87 Difference]: Start difference. First operand 1620 states and 2113 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:09,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:09,115 INFO L93 Difference]: Finished difference Result 2275 states and 2992 transitions. [2023-12-20 03:37:09,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:37:09,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2023-12-20 03:37:09,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:09,121 INFO L225 Difference]: With dead ends: 2275 [2023-12-20 03:37:09,121 INFO L226 Difference]: Without dead ends: 1492 [2023-12-20 03:37:09,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:37:09,127 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 5770 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5770 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:09,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5770 Valid, 846 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:37:09,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2023-12-20 03:37:09,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1492. [2023-12-20 03:37:09,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1470 states have (on average 1.3387755102040817) internal successors, (1968), 1491 states have internal predecessors, (1968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:09,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 1968 transitions. [2023-12-20 03:37:09,153 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 1968 transitions. Word has length 85 [2023-12-20 03:37:09,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:09,155 INFO L495 AbstractCegarLoop]: Abstraction has 1492 states and 1968 transitions. [2023-12-20 03:37:09,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:09,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 1968 transitions. [2023-12-20 03:37:09,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-20 03:37:09,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:09,166 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] [2023-12-20 03:37:09,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 03:37:09,166 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:09,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:09,170 INFO L85 PathProgramCache]: Analyzing trace with hash -546397045, now seen corresponding path program 1 times [2023-12-20 03:37:09,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:09,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674252936] [2023-12-20 03:37:09,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:09,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:09,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:09,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:09,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674252936] [2023-12-20 03:37:09,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674252936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:09,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:09,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:37:09,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274300681] [2023-12-20 03:37:09,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:09,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:37:09,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:09,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:37:09,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:37:09,346 INFO L87 Difference]: Start difference. First operand 1492 states and 1968 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:10,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:10,034 INFO L93 Difference]: Finished difference Result 2019 states and 2670 transitions. [2023-12-20 03:37:10,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:37:10,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2023-12-20 03:37:10,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:10,039 INFO L225 Difference]: With dead ends: 2019 [2023-12-20 03:37:10,039 INFO L226 Difference]: Without dead ends: 1252 [2023-12-20 03:37:10,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:37:10,045 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 4945 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4945 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:10,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4945 Valid, 776 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:37:10,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2023-12-20 03:37:10,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1252. [2023-12-20 03:37:10,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 1230 states have (on average 1.3585365853658538) internal successors, (1671), 1251 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:10,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1671 transitions. [2023-12-20 03:37:10,069 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1671 transitions. Word has length 85 [2023-12-20 03:37:10,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:10,070 INFO L495 AbstractCegarLoop]: Abstraction has 1252 states and 1671 transitions. [2023-12-20 03:37:10,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:10,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1671 transitions. [2023-12-20 03:37:10,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-20 03:37:10,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:10,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:10,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 03:37:10,074 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:10,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:10,074 INFO L85 PathProgramCache]: Analyzing trace with hash 828162727, now seen corresponding path program 1 times [2023-12-20 03:37:10,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:10,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642556470] [2023-12-20 03:37:10,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:10,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:10,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:10,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:10,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642556470] [2023-12-20 03:37:10,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642556470] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:10,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:10,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:37:10,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682662180] [2023-12-20 03:37:10,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:10,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:37:10,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:10,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:37:10,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:37:10,216 INFO L87 Difference]: Start difference. First operand 1252 states and 1671 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:10,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:10,950 INFO L93 Difference]: Finished difference Result 1818 states and 2439 transitions. [2023-12-20 03:37:10,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:37:10,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-20 03:37:10,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:10,955 INFO L225 Difference]: With dead ends: 1818 [2023-12-20 03:37:10,955 INFO L226 Difference]: Without dead ends: 1161 [2023-12-20 03:37:10,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:37:10,957 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 4635 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4635 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:10,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4635 Valid, 735 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:37:10,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2023-12-20 03:37:10,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1161. [2023-12-20 03:37:10,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 1139 states have (on average 1.3722563652326603) internal successors, (1563), 1160 states have internal predecessors, (1563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:10,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1563 transitions. [2023-12-20 03:37:10,974 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1563 transitions. Word has length 86 [2023-12-20 03:37:10,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:10,974 INFO L495 AbstractCegarLoop]: Abstraction has 1161 states and 1563 transitions. [2023-12-20 03:37:10,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:10,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1563 transitions. [2023-12-20 03:37:10,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-20 03:37:10,976 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:10,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:10,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 03:37:10,977 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:10,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:10,978 INFO L85 PathProgramCache]: Analyzing trace with hash -379387896, now seen corresponding path program 1 times [2023-12-20 03:37:10,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:10,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417241877] [2023-12-20 03:37:10,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:10,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:11,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:11,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:11,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417241877] [2023-12-20 03:37:11,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417241877] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:11,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:11,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:37:11,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884002928] [2023-12-20 03:37:11,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:11,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:37:11,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:11,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:37:11,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:37:11,091 INFO L87 Difference]: Start difference. First operand 1161 states and 1563 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:11,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:11,606 INFO L93 Difference]: Finished difference Result 1480 states and 1959 transitions. [2023-12-20 03:37:11,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:37:11,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2023-12-20 03:37:11,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:11,609 INFO L225 Difference]: With dead ends: 1480 [2023-12-20 03:37:11,609 INFO L226 Difference]: Without dead ends: 896 [2023-12-20 03:37:11,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:37:11,611 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 3516 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3516 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:11,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3516 Valid, 590 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:37:11,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-12-20 03:37:11,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 896. [2023-12-20 03:37:11,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 874 states have (on average 1.3787185354691076) internal successors, (1205), 895 states have internal predecessors, (1205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:11,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1205 transitions. [2023-12-20 03:37:11,624 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1205 transitions. Word has length 87 [2023-12-20 03:37:11,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:11,626 INFO L495 AbstractCegarLoop]: Abstraction has 896 states and 1205 transitions. [2023-12-20 03:37:11,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:11,626 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1205 transitions. [2023-12-20 03:37:11,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-20 03:37:11,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:11,627 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:11,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 03:37:11,627 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:11,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:11,628 INFO L85 PathProgramCache]: Analyzing trace with hash -211366857, now seen corresponding path program 1 times [2023-12-20 03:37:11,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:11,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375938648] [2023-12-20 03:37:11,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:11,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:11,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:11,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:11,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375938648] [2023-12-20 03:37:11,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375938648] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:11,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:11,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:37:11,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362247364] [2023-12-20 03:37:11,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:11,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:37:11,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:11,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:37:11,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:37:11,742 INFO L87 Difference]: Start difference. First operand 896 states and 1205 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:12,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:12,088 INFO L93 Difference]: Finished difference Result 1085 states and 1422 transitions. [2023-12-20 03:37:12,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:37:12,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-12-20 03:37:12,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:12,090 INFO L225 Difference]: With dead ends: 1085 [2023-12-20 03:37:12,091 INFO L226 Difference]: Without dead ends: 637 [2023-12-20 03:37:12,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:37:12,092 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 2443 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2443 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:12,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2443 Valid, 468 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:37:12,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2023-12-20 03:37:12,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 637. [2023-12-20 03:37:12,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 615 states have (on average 1.383739837398374) internal successors, (851), 636 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:12,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 851 transitions. [2023-12-20 03:37:12,099 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 851 transitions. Word has length 88 [2023-12-20 03:37:12,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:12,099 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 851 transitions. [2023-12-20 03:37:12,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:12,100 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 851 transitions. [2023-12-20 03:37:12,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-20 03:37:12,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:12,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:12,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 03:37:12,101 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:12,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:12,101 INFO L85 PathProgramCache]: Analyzing trace with hash 328508839, now seen corresponding path program 1 times [2023-12-20 03:37:12,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:12,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186417395] [2023-12-20 03:37:12,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:12,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:12,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:12,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:12,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:12,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186417395] [2023-12-20 03:37:12,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186417395] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:12,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:12,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:37:12,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037129893] [2023-12-20 03:37:12,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:12,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:37:12,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:12,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:37:12,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:37:12,423 INFO L87 Difference]: Start difference. First operand 637 states and 851 transitions. Second operand has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:13,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:13,927 INFO L93 Difference]: Finished difference Result 1253 states and 1694 transitions. [2023-12-20 03:37:13,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 03:37:13,927 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-20 03:37:13,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:13,930 INFO L225 Difference]: With dead ends: 1253 [2023-12-20 03:37:13,931 INFO L226 Difference]: Without dead ends: 1167 [2023-12-20 03:37:13,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2023-12-20 03:37:13,932 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 2627 mSDsluCounter, 2985 mSDsCounter, 0 mSdLazyCounter, 3042 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2627 SdHoareTripleChecker+Valid, 3501 SdHoareTripleChecker+Invalid, 3050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 3042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:13,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2627 Valid, 3501 Invalid, 3050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 3042 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 03:37:13,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2023-12-20 03:37:13,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 650. [2023-12-20 03:37:13,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 628 states have (on average 1.3853503184713376) internal successors, (870), 649 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:13,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 870 transitions. [2023-12-20 03:37:13,942 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 870 transitions. Word has length 89 [2023-12-20 03:37:13,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:13,942 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 870 transitions. [2023-12-20 03:37:13,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:13,942 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 870 transitions. [2023-12-20 03:37:13,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-20 03:37:13,943 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:13,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:13,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 03:37:13,943 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:13,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:13,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1518979119, now seen corresponding path program 1 times [2023-12-20 03:37:13,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:13,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107522787] [2023-12-20 03:37:13,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:13,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:14,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:14,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:14,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107522787] [2023-12-20 03:37:14,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107522787] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:14,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:14,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:14,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082102362] [2023-12-20 03:37:14,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:14,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:14,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:14,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:14,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:14,211 INFO L87 Difference]: Start difference. First operand 650 states and 870 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:15,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:15,315 INFO L93 Difference]: Finished difference Result 1328 states and 1813 transitions. [2023-12-20 03:37:15,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:37:15,315 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-20 03:37:15,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:15,318 INFO L225 Difference]: With dead ends: 1328 [2023-12-20 03:37:15,318 INFO L226 Difference]: Without dead ends: 1136 [2023-12-20 03:37:15,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:37:15,320 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 3159 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 2223 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3159 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:15,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3159 Valid, 2788 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2223 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:37:15,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2023-12-20 03:37:15,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 637. [2023-12-20 03:37:15,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 615 states have (on average 1.3821138211382114) internal successors, (850), 636 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:15,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 850 transitions. [2023-12-20 03:37:15,330 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 850 transitions. Word has length 89 [2023-12-20 03:37:15,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:15,331 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 850 transitions. [2023-12-20 03:37:15,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:15,331 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 850 transitions. [2023-12-20 03:37:15,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-20 03:37:15,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:15,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:15,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 03:37:15,332 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:15,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:15,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1669555108, now seen corresponding path program 1 times [2023-12-20 03:37:15,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:15,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489075119] [2023-12-20 03:37:15,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:15,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:15,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:15,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:15,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489075119] [2023-12-20 03:37:15,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489075119] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:15,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:15,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:15,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180249318] [2023-12-20 03:37:15,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:15,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:15,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:15,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:15,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:15,654 INFO L87 Difference]: Start difference. First operand 637 states and 850 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:16,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:16,883 INFO L93 Difference]: Finished difference Result 1255 states and 1717 transitions. [2023-12-20 03:37:16,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:37:16,884 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-20 03:37:16,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:16,887 INFO L225 Difference]: With dead ends: 1255 [2023-12-20 03:37:16,887 INFO L226 Difference]: Without dead ends: 1131 [2023-12-20 03:37:16,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:37:16,888 INFO L413 NwaCegarLoop]: 679 mSDtfsCounter, 2985 mSDsluCounter, 2644 mSDsCounter, 0 mSdLazyCounter, 2489 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2985 SdHoareTripleChecker+Valid, 3323 SdHoareTripleChecker+Invalid, 2493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:16,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2985 Valid, 3323 Invalid, 2493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2489 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 03:37:16,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-20 03:37:16,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 637. [2023-12-20 03:37:16,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 615 states have (on average 1.3804878048780487) internal successors, (849), 636 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:16,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 849 transitions. [2023-12-20 03:37:16,898 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 849 transitions. Word has length 89 [2023-12-20 03:37:16,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:16,898 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 849 transitions. [2023-12-20 03:37:16,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:16,899 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 849 transitions. [2023-12-20 03:37:16,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-20 03:37:16,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:16,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:16,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 03:37:16,900 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:16,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:16,900 INFO L85 PathProgramCache]: Analyzing trace with hash 231777635, now seen corresponding path program 1 times [2023-12-20 03:37:16,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:16,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873695546] [2023-12-20 03:37:16,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:16,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:17,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:17,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:17,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873695546] [2023-12-20 03:37:17,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873695546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:17,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:17,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:37:17,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659295829] [2023-12-20 03:37:17,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:17,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 03:37:17,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:17,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 03:37:17,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:37:17,124 INFO L87 Difference]: Start difference. First operand 637 states and 849 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:17,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:17,737 INFO L93 Difference]: Finished difference Result 1200 states and 1559 transitions. [2023-12-20 03:37:17,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:37:17,738 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-20 03:37:17,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:17,740 INFO L225 Difference]: With dead ends: 1200 [2023-12-20 03:37:17,740 INFO L226 Difference]: Without dead ends: 854 [2023-12-20 03:37:17,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:37:17,741 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 3336 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3336 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:17,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3336 Valid, 1028 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:37:17,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2023-12-20 03:37:17,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 637. [2023-12-20 03:37:17,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 615 states have (on average 1.3788617886178862) internal successors, (848), 636 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:17,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 848 transitions. [2023-12-20 03:37:17,749 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 848 transitions. Word has length 89 [2023-12-20 03:37:17,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:17,749 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 848 transitions. [2023-12-20 03:37:17,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:17,749 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 848 transitions. [2023-12-20 03:37:17,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 03:37:17,750 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:17,750 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] [2023-12-20 03:37:17,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 03:37:17,751 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:17,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:17,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1427714440, now seen corresponding path program 1 times [2023-12-20 03:37:17,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:17,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384686514] [2023-12-20 03:37:17,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:17,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:18,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:18,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:18,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384686514] [2023-12-20 03:37:18,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384686514] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:18,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:18,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:18,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816399401] [2023-12-20 03:37:18,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:18,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:18,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:18,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:18,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:18,016 INFO L87 Difference]: Start difference. First operand 637 states and 848 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:19,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:19,145 INFO L93 Difference]: Finished difference Result 1194 states and 1614 transitions. [2023-12-20 03:37:19,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:19,146 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-20 03:37:19,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:19,149 INFO L225 Difference]: With dead ends: 1194 [2023-12-20 03:37:19,149 INFO L226 Difference]: Without dead ends: 1108 [2023-12-20 03:37:19,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:19,150 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 3750 mSDsluCounter, 1703 mSDsCounter, 0 mSdLazyCounter, 1828 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3750 SdHoareTripleChecker+Valid, 2226 SdHoareTripleChecker+Invalid, 1832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:19,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3750 Valid, 2226 Invalid, 1832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1828 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:37:19,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2023-12-20 03:37:19,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 637. [2023-12-20 03:37:19,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 615 states have (on average 1.3772357723577235) internal successors, (847), 636 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:19,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 847 transitions. [2023-12-20 03:37:19,159 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 847 transitions. Word has length 91 [2023-12-20 03:37:19,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:19,159 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 847 transitions. [2023-12-20 03:37:19,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:19,159 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 847 transitions. [2023-12-20 03:37:19,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 03:37:19,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:19,160 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] [2023-12-20 03:37:19,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 03:37:19,160 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:19,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:19,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1221078273, now seen corresponding path program 1 times [2023-12-20 03:37:19,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:19,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305326553] [2023-12-20 03:37:19,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:19,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:19,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:19,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:19,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305326553] [2023-12-20 03:37:19,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305326553] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:19,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:19,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:19,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274014248] [2023-12-20 03:37:19,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:19,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:19,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:19,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:19,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:19,367 INFO L87 Difference]: Start difference. First operand 637 states and 847 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:20,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:20,170 INFO L93 Difference]: Finished difference Result 1081 states and 1437 transitions. [2023-12-20 03:37:20,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:20,170 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-20 03:37:20,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:20,186 INFO L225 Difference]: With dead ends: 1081 [2023-12-20 03:37:20,186 INFO L226 Difference]: Without dead ends: 1076 [2023-12-20 03:37:20,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:20,187 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 3681 mSDsluCounter, 1625 mSDsCounter, 0 mSdLazyCounter, 1828 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3681 SdHoareTripleChecker+Valid, 2140 SdHoareTripleChecker+Invalid, 1832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:20,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3681 Valid, 2140 Invalid, 1832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1828 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:37:20,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2023-12-20 03:37:20,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 637. [2023-12-20 03:37:20,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 615 states have (on average 1.3756097560975609) internal successors, (846), 636 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:20,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 846 transitions. [2023-12-20 03:37:20,195 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 846 transitions. Word has length 91 [2023-12-20 03:37:20,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:20,195 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 846 transitions. [2023-12-20 03:37:20,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:20,196 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 846 transitions. [2023-12-20 03:37:20,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 03:37:20,204 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:20,204 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] [2023-12-20 03:37:20,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 03:37:20,204 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:20,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:20,205 INFO L85 PathProgramCache]: Analyzing trace with hash 207011855, now seen corresponding path program 1 times [2023-12-20 03:37:20,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:20,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225220744] [2023-12-20 03:37:20,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:20,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:20,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:20,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:20,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225220744] [2023-12-20 03:37:20,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225220744] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:20,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:20,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:20,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203355200] [2023-12-20 03:37:20,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:20,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:20,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:20,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:20,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:20,400 INFO L87 Difference]: Start difference. First operand 637 states and 846 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:21,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:21,502 INFO L93 Difference]: Finished difference Result 1269 states and 1723 transitions. [2023-12-20 03:37:21,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:37:21,503 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-20 03:37:21,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:21,505 INFO L225 Difference]: With dead ends: 1269 [2023-12-20 03:37:21,505 INFO L226 Difference]: Without dead ends: 1131 [2023-12-20 03:37:21,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:37:21,506 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 2938 mSDsluCounter, 2663 mSDsCounter, 0 mSdLazyCounter, 2472 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2938 SdHoareTripleChecker+Valid, 3358 SdHoareTripleChecker+Invalid, 2476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:21,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2938 Valid, 3358 Invalid, 2476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2472 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:37:21,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-20 03:37:21,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 637. [2023-12-20 03:37:21,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 615 states have (on average 1.3739837398373984) internal successors, (845), 636 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:21,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 845 transitions. [2023-12-20 03:37:21,514 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 845 transitions. Word has length 91 [2023-12-20 03:37:21,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:21,514 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 845 transitions. [2023-12-20 03:37:21,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:21,514 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 845 transitions. [2023-12-20 03:37:21,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 03:37:21,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:21,515 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] [2023-12-20 03:37:21,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 03:37:21,516 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:21,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:21,516 INFO L85 PathProgramCache]: Analyzing trace with hash -982216986, now seen corresponding path program 1 times [2023-12-20 03:37:21,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:21,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532017014] [2023-12-20 03:37:21,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:21,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:21,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:21,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:21,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532017014] [2023-12-20 03:37:21,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532017014] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:21,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:21,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:37:21,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890361777] [2023-12-20 03:37:21,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:21,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:37:21,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:21,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:37:21,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:37:21,777 INFO L87 Difference]: Start difference. First operand 637 states and 845 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:23,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:23,044 INFO L93 Difference]: Finished difference Result 1268 states and 1699 transitions. [2023-12-20 03:37:23,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 03:37:23,044 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-20 03:37:23,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:23,047 INFO L225 Difference]: With dead ends: 1268 [2023-12-20 03:37:23,047 INFO L226 Difference]: Without dead ends: 1177 [2023-12-20 03:37:23,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2023-12-20 03:37:23,048 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 4435 mSDsluCounter, 2355 mSDsCounter, 0 mSdLazyCounter, 2315 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4435 SdHoareTripleChecker+Valid, 2841 SdHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:23,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4435 Valid, 2841 Invalid, 2329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2315 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 03:37:23,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2023-12-20 03:37:23,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 650. [2023-12-20 03:37:23,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 628 states have (on average 1.375796178343949) internal successors, (864), 649 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:23,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 864 transitions. [2023-12-20 03:37:23,056 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 864 transitions. Word has length 91 [2023-12-20 03:37:23,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:23,057 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 864 transitions. [2023-12-20 03:37:23,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:23,057 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 864 transitions. [2023-12-20 03:37:23,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 03:37:23,058 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:23,058 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] [2023-12-20 03:37:23,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 03:37:23,058 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:23,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:23,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1680995533, now seen corresponding path program 1 times [2023-12-20 03:37:23,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:23,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992939227] [2023-12-20 03:37:23,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:23,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:23,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:23,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:23,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992939227] [2023-12-20 03:37:23,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992939227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:23,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:23,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:23,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693452905] [2023-12-20 03:37:23,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:23,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:23,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:23,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:23,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:23,226 INFO L87 Difference]: Start difference. First operand 650 states and 864 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:24,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:24,328 INFO L93 Difference]: Finished difference Result 1358 states and 1831 transitions. [2023-12-20 03:37:24,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:24,328 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-20 03:37:24,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:24,331 INFO L225 Difference]: With dead ends: 1358 [2023-12-20 03:37:24,331 INFO L226 Difference]: Without dead ends: 1136 [2023-12-20 03:37:24,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:24,332 INFO L413 NwaCegarLoop]: 799 mSDtfsCounter, 2403 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 2855 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:24,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2403 Valid, 2855 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2255 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:37:24,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2023-12-20 03:37:24,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 637. [2023-12-20 03:37:24,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 615 states have (on average 1.3723577235772357) internal successors, (844), 636 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:24,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 844 transitions. [2023-12-20 03:37:24,355 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 844 transitions. Word has length 91 [2023-12-20 03:37:24,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:24,355 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 844 transitions. [2023-12-20 03:37:24,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:24,355 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 844 transitions. [2023-12-20 03:37:24,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 03:37:24,356 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:24,356 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] [2023-12-20 03:37:24,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 03:37:24,357 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:24,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:24,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1988895487, now seen corresponding path program 1 times [2023-12-20 03:37:24,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:24,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130149782] [2023-12-20 03:37:24,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:24,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:24,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:24,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:24,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130149782] [2023-12-20 03:37:24,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130149782] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:24,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:24,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:24,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446725601] [2023-12-20 03:37:24,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:24,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:24,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:24,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:24,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:24,533 INFO L87 Difference]: Start difference. First operand 637 states and 844 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:25,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:25,497 INFO L93 Difference]: Finished difference Result 1194 states and 1609 transitions. [2023-12-20 03:37:25,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:25,498 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-20 03:37:25,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:25,500 INFO L225 Difference]: With dead ends: 1194 [2023-12-20 03:37:25,500 INFO L226 Difference]: Without dead ends: 1108 [2023-12-20 03:37:25,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:25,501 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 3734 mSDsluCounter, 1703 mSDsCounter, 0 mSdLazyCounter, 1813 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3734 SdHoareTripleChecker+Valid, 2226 SdHoareTripleChecker+Invalid, 1817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:25,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3734 Valid, 2226 Invalid, 1817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1813 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:37:25,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2023-12-20 03:37:25,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 637. [2023-12-20 03:37:25,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 615 states have (on average 1.3707317073170733) internal successors, (843), 636 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:25,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 843 transitions. [2023-12-20 03:37:25,510 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 843 transitions. Word has length 91 [2023-12-20 03:37:25,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:25,511 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 843 transitions. [2023-12-20 03:37:25,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:25,511 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 843 transitions. [2023-12-20 03:37:25,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 03:37:25,512 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:25,512 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] [2023-12-20 03:37:25,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 03:37:25,512 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:25,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:25,512 INFO L85 PathProgramCache]: Analyzing trace with hash 646324256, now seen corresponding path program 1 times [2023-12-20 03:37:25,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:25,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923165472] [2023-12-20 03:37:25,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:25,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:25,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:25,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:25,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:25,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923165472] [2023-12-20 03:37:25,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923165472] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:25,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:25,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:25,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993230110] [2023-12-20 03:37:25,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:25,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:25,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:25,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:25,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:25,680 INFO L87 Difference]: Start difference. First operand 637 states and 843 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:26,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:26,611 INFO L93 Difference]: Finished difference Result 1190 states and 1604 transitions. [2023-12-20 03:37:26,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:26,612 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-20 03:37:26,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:26,614 INFO L225 Difference]: With dead ends: 1190 [2023-12-20 03:37:26,614 INFO L226 Difference]: Without dead ends: 1108 [2023-12-20 03:37:26,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:26,615 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 2528 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 1805 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2528 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:26,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2528 Valid, 2181 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1805 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:37:26,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2023-12-20 03:37:26,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 637. [2023-12-20 03:37:26,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 615 states have (on average 1.3691056910569106) internal successors, (842), 636 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:26,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 842 transitions. [2023-12-20 03:37:26,623 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 842 transitions. Word has length 91 [2023-12-20 03:37:26,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:26,623 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 842 transitions. [2023-12-20 03:37:26,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:26,623 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 842 transitions. [2023-12-20 03:37:26,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 03:37:26,624 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:26,624 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] [2023-12-20 03:37:26,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 03:37:26,624 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:26,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:26,625 INFO L85 PathProgramCache]: Analyzing trace with hash 850721804, now seen corresponding path program 1 times [2023-12-20 03:37:26,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:26,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897076147] [2023-12-20 03:37:26,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:26,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:26,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:26,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:26,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897076147] [2023-12-20 03:37:26,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897076147] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:26,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:26,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:26,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894089006] [2023-12-20 03:37:26,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:26,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:26,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:26,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:26,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:26,797 INFO L87 Difference]: Start difference. First operand 637 states and 842 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:27,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:27,796 INFO L93 Difference]: Finished difference Result 1194 states and 1606 transitions. [2023-12-20 03:37:27,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:27,796 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-20 03:37:27,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:27,799 INFO L225 Difference]: With dead ends: 1194 [2023-12-20 03:37:27,799 INFO L226 Difference]: Without dead ends: 1108 [2023-12-20 03:37:27,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:27,800 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 3726 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3726 SdHoareTripleChecker+Valid, 2224 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:27,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3726 Valid, 2224 Invalid, 1808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:37:27,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2023-12-20 03:37:27,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 637. [2023-12-20 03:37:27,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 615 states have (on average 1.367479674796748) internal successors, (841), 636 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:27,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 841 transitions. [2023-12-20 03:37:27,808 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 841 transitions. Word has length 91 [2023-12-20 03:37:27,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:27,808 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 841 transitions. [2023-12-20 03:37:27,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:27,808 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 841 transitions. [2023-12-20 03:37:27,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 03:37:27,809 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:27,809 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] [2023-12-20 03:37:27,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 03:37:27,810 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:27,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:27,810 INFO L85 PathProgramCache]: Analyzing trace with hash 2041192084, now seen corresponding path program 1 times [2023-12-20 03:37:27,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:27,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027990285] [2023-12-20 03:37:27,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:27,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:28,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:28,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:28,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027990285] [2023-12-20 03:37:28,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027990285] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:28,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:28,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:37:28,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212516140] [2023-12-20 03:37:28,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:28,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:37:28,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:28,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:37:28,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:37:28,168 INFO L87 Difference]: Start difference. First operand 637 states and 841 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:30,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:30,402 INFO L93 Difference]: Finished difference Result 1937 states and 2697 transitions. [2023-12-20 03:37:30,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-20 03:37:30,402 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2023-12-20 03:37:30,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:30,407 INFO L225 Difference]: With dead ends: 1937 [2023-12-20 03:37:30,407 INFO L226 Difference]: Without dead ends: 1799 [2023-12-20 03:37:30,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-20 03:37:30,409 INFO L413 NwaCegarLoop]: 1092 mSDtfsCounter, 5765 mSDsluCounter, 4011 mSDsCounter, 0 mSdLazyCounter, 4270 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5765 SdHoareTripleChecker+Valid, 5103 SdHoareTripleChecker+Invalid, 4473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 4270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:30,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5765 Valid, 5103 Invalid, 4473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 4270 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-20 03:37:30,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2023-12-20 03:37:30,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 641. [2023-12-20 03:37:30,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3651050080775444) internal successors, (845), 640 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:30,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 845 transitions. [2023-12-20 03:37:30,419 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 845 transitions. Word has length 91 [2023-12-20 03:37:30,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:30,419 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 845 transitions. [2023-12-20 03:37:30,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:30,419 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 845 transitions. [2023-12-20 03:37:30,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-20 03:37:30,420 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:30,420 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] [2023-12-20 03:37:30,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 03:37:30,421 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:30,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:30,421 INFO L85 PathProgramCache]: Analyzing trace with hash 119251772, now seen corresponding path program 1 times [2023-12-20 03:37:30,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:30,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639840785] [2023-12-20 03:37:30,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:30,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:30,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:30,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:30,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639840785] [2023-12-20 03:37:30,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639840785] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:30,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:30,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:30,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801330723] [2023-12-20 03:37:30,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:30,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:30,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:30,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:30,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:30,585 INFO L87 Difference]: Start difference. First operand 641 states and 845 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:31,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:31,680 INFO L93 Difference]: Finished difference Result 1269 states and 1720 transitions. [2023-12-20 03:37:31,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:31,680 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2023-12-20 03:37:31,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:31,683 INFO L225 Difference]: With dead ends: 1269 [2023-12-20 03:37:31,683 INFO L226 Difference]: Without dead ends: 1131 [2023-12-20 03:37:31,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:31,685 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 2885 mSDsluCounter, 2473 mSDsCounter, 0 mSdLazyCounter, 2609 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2885 SdHoareTripleChecker+Valid, 3320 SdHoareTripleChecker+Invalid, 2612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:31,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2885 Valid, 3320 Invalid, 2612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2609 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:37:31,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-20 03:37:31,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 637. [2023-12-20 03:37:31,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 615 states have (on average 1.3658536585365855) internal successors, (840), 636 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:31,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 840 transitions. [2023-12-20 03:37:31,697 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 840 transitions. Word has length 92 [2023-12-20 03:37:31,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:31,698 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 840 transitions. [2023-12-20 03:37:31,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:31,698 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 840 transitions. [2023-12-20 03:37:31,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:37:31,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:31,699 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] [2023-12-20 03:37:31,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-20 03:37:31,699 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:31,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:31,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1474627327, now seen corresponding path program 1 times [2023-12-20 03:37:31,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:31,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487512713] [2023-12-20 03:37:31,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:31,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:31,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:31,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:31,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:31,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487512713] [2023-12-20 03:37:31,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487512713] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:31,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:31,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:31,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233202412] [2023-12-20 03:37:31,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:31,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:31,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:31,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:31,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:31,846 INFO L87 Difference]: Start difference. First operand 637 states and 840 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:32,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:32,676 INFO L93 Difference]: Finished difference Result 1199 states and 1607 transitions. [2023-12-20 03:37:32,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:32,676 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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 [2023-12-20 03:37:32,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:32,679 INFO L225 Difference]: With dead ends: 1199 [2023-12-20 03:37:32,679 INFO L226 Difference]: Without dead ends: 1108 [2023-12-20 03:37:32,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:32,681 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 4198 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4198 SdHoareTripleChecker+Valid, 2031 SdHoareTripleChecker+Invalid, 1613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:32,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4198 Valid, 2031 Invalid, 1613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:37:32,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2023-12-20 03:37:32,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 637. [2023-12-20 03:37:32,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 615 states have (on average 1.3642276422764228) internal successors, (839), 636 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:32,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 839 transitions. [2023-12-20 03:37:32,691 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 839 transitions. Word has length 93 [2023-12-20 03:37:32,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:32,691 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 839 transitions. [2023-12-20 03:37:32,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:32,691 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 839 transitions. [2023-12-20 03:37:32,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:37:32,692 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:32,692 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] [2023-12-20 03:37:32,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-20 03:37:32,693 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:32,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:32,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1188585192, now seen corresponding path program 1 times [2023-12-20 03:37:32,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:32,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663298647] [2023-12-20 03:37:32,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:32,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:32,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:32,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:32,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663298647] [2023-12-20 03:37:32,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663298647] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:32,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:32,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:32,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304763391] [2023-12-20 03:37:32,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:32,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:32,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:32,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:32,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:32,877 INFO L87 Difference]: Start difference. First operand 637 states and 839 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:33,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:33,940 INFO L93 Difference]: Finished difference Result 1232 states and 1658 transitions. [2023-12-20 03:37:33,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:37:33,941 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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 [2023-12-20 03:37:33,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:33,943 INFO L225 Difference]: With dead ends: 1232 [2023-12-20 03:37:33,943 INFO L226 Difference]: Without dead ends: 1124 [2023-12-20 03:37:33,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:37:33,944 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 2215 mSDsluCounter, 2354 mSDsCounter, 0 mSdLazyCounter, 2184 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2215 SdHoareTripleChecker+Valid, 3066 SdHoareTripleChecker+Invalid, 2189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:33,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2215 Valid, 3066 Invalid, 2189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2184 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:37:33,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2023-12-20 03:37:33,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 637. [2023-12-20 03:37:33,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 615 states have (on average 1.3626016260162601) internal successors, (838), 636 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:33,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 838 transitions. [2023-12-20 03:37:33,951 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 838 transitions. Word has length 93 [2023-12-20 03:37:33,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:33,951 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 838 transitions. [2023-12-20 03:37:33,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:33,951 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 838 transitions. [2023-12-20 03:37:33,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:37:33,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:33,952 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] [2023-12-20 03:37:33,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-20 03:37:33,952 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:33,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:33,952 INFO L85 PathProgramCache]: Analyzing trace with hash -281811597, now seen corresponding path program 1 times [2023-12-20 03:37:33,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:33,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651430022] [2023-12-20 03:37:33,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:33,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:34,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:34,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:34,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651430022] [2023-12-20 03:37:34,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651430022] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:34,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:34,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:34,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634002911] [2023-12-20 03:37:34,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:34,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:34,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:34,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:34,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:34,097 INFO L87 Difference]: Start difference. First operand 637 states and 838 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:34,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:34,968 INFO L93 Difference]: Finished difference Result 1155 states and 1538 transitions. [2023-12-20 03:37:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:34,969 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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 [2023-12-20 03:37:34,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:34,971 INFO L225 Difference]: With dead ends: 1155 [2023-12-20 03:37:34,971 INFO L226 Difference]: Without dead ends: 1076 [2023-12-20 03:37:34,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:34,972 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 3522 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 1891 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3522 SdHoareTripleChecker+Valid, 2279 SdHoareTripleChecker+Invalid, 1895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:34,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3522 Valid, 2279 Invalid, 1895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1891 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:37:34,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2023-12-20 03:37:34,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 637. [2023-12-20 03:37:34,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 615 states have (on average 1.3609756097560977) internal successors, (837), 636 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:34,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 837 transitions. [2023-12-20 03:37:34,992 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 837 transitions. Word has length 93 [2023-12-20 03:37:34,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:34,992 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 837 transitions. [2023-12-20 03:37:34,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:34,993 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 837 transitions. [2023-12-20 03:37:34,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:37:34,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:34,994 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] [2023-12-20 03:37:34,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-20 03:37:34,994 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:34,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:34,994 INFO L85 PathProgramCache]: Analyzing trace with hash -610424553, now seen corresponding path program 1 times [2023-12-20 03:37:34,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:34,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595909358] [2023-12-20 03:37:34,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:34,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:35,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:35,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:35,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595909358] [2023-12-20 03:37:35,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595909358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:35,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:35,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:37:35,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794269568] [2023-12-20 03:37:35,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:35,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:37:35,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:35,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:37:35,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:37:35,262 INFO L87 Difference]: Start difference. First operand 637 states and 837 transitions. Second operand has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 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) [2023-12-20 03:37:37,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:37,487 INFO L93 Difference]: Finished difference Result 1967 states and 2715 transitions. [2023-12-20 03:37:37,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-20 03:37:37,488 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 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 [2023-12-20 03:37:37,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:37,491 INFO L225 Difference]: With dead ends: 1967 [2023-12-20 03:37:37,491 INFO L226 Difference]: Without dead ends: 1814 [2023-12-20 03:37:37,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-20 03:37:37,493 INFO L413 NwaCegarLoop]: 1104 mSDtfsCounter, 5795 mSDsluCounter, 3535 mSDsCounter, 0 mSdLazyCounter, 3872 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5795 SdHoareTripleChecker+Valid, 4639 SdHoareTripleChecker+Invalid, 4076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 3872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:37,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5795 Valid, 4639 Invalid, 4076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 3872 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-20 03:37:37,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2023-12-20 03:37:37,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 641. [2023-12-20 03:37:37,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.358642972536349) internal successors, (841), 640 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:37,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 841 transitions. [2023-12-20 03:37:37,525 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 841 transitions. Word has length 93 [2023-12-20 03:37:37,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:37,525 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 841 transitions. [2023-12-20 03:37:37,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 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) [2023-12-20 03:37:37,525 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 841 transitions. [2023-12-20 03:37:37,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:37:37,526 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:37,526 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] [2023-12-20 03:37:37,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-20 03:37:37,526 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:37,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:37,527 INFO L85 PathProgramCache]: Analyzing trace with hash -603748374, now seen corresponding path program 1 times [2023-12-20 03:37:37,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:37,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663642616] [2023-12-20 03:37:37,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:37,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:37,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:37,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:37,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663642616] [2023-12-20 03:37:37,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663642616] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:37,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:37,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:37,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094318535] [2023-12-20 03:37:37,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:37,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:37,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:37,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:37,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:37,766 INFO L87 Difference]: Start difference. First operand 641 states and 841 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:38,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:38,742 INFO L93 Difference]: Finished difference Result 1129 states and 1496 transitions. [2023-12-20 03:37:38,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:38,743 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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 [2023-12-20 03:37:38,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:38,745 INFO L225 Difference]: With dead ends: 1129 [2023-12-20 03:37:38,745 INFO L226 Difference]: Without dead ends: 1112 [2023-12-20 03:37:38,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:38,745 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 3633 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 1842 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3633 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:38,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3633 Valid, 2323 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1842 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:37:38,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2023-12-20 03:37:38,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 641. [2023-12-20 03:37:38,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.35702746365105) internal successors, (840), 640 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:38,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 840 transitions. [2023-12-20 03:37:38,761 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 840 transitions. Word has length 93 [2023-12-20 03:37:38,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:38,761 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 840 transitions. [2023-12-20 03:37:38,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:38,762 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 840 transitions. [2023-12-20 03:37:38,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:37:38,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:38,763 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] [2023-12-20 03:37:38,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-20 03:37:38,763 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:38,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:38,763 INFO L85 PathProgramCache]: Analyzing trace with hash 2059464145, now seen corresponding path program 1 times [2023-12-20 03:37:38,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:38,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447017873] [2023-12-20 03:37:38,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:38,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:38,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:38,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:38,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447017873] [2023-12-20 03:37:38,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447017873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:38,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:38,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:38,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461741086] [2023-12-20 03:37:38,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:38,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:38,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:38,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:38,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:38,945 INFO L87 Difference]: Start difference. First operand 641 states and 840 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:39,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:39,989 INFO L93 Difference]: Finished difference Result 1236 states and 1656 transitions. [2023-12-20 03:37:39,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:37:39,989 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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 [2023-12-20 03:37:39,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:39,991 INFO L225 Difference]: With dead ends: 1236 [2023-12-20 03:37:39,991 INFO L226 Difference]: Without dead ends: 1128 [2023-12-20 03:37:39,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:37:39,992 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 1910 mSDsluCounter, 2519 mSDsCounter, 0 mSdLazyCounter, 2459 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1910 SdHoareTripleChecker+Valid, 3309 SdHoareTripleChecker+Invalid, 2463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:39,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1910 Valid, 3309 Invalid, 2463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2459 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:37:39,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2023-12-20 03:37:39,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 641. [2023-12-20 03:37:39,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3554119547657513) internal successors, (839), 640 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:39,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 839 transitions. [2023-12-20 03:37:39,998 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 839 transitions. Word has length 93 [2023-12-20 03:37:39,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:39,998 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 839 transitions. [2023-12-20 03:37:39,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:39,998 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 839 transitions. [2023-12-20 03:37:39,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:37:39,999 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:39,999 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] [2023-12-20 03:37:40,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-20 03:37:40,000 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:40,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:40,000 INFO L85 PathProgramCache]: Analyzing trace with hash 413378925, now seen corresponding path program 1 times [2023-12-20 03:37:40,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:40,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618351598] [2023-12-20 03:37:40,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:40,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:40,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:40,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:40,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618351598] [2023-12-20 03:37:40,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618351598] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:40,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:40,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:40,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863078133] [2023-12-20 03:37:40,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:40,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:40,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:40,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:40,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:40,228 INFO L87 Difference]: Start difference. First operand 641 states and 839 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:40,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:40,970 INFO L93 Difference]: Finished difference Result 1227 states and 1647 transitions. [2023-12-20 03:37:40,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:37:40,970 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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 [2023-12-20 03:37:40,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:40,974 INFO L225 Difference]: With dead ends: 1227 [2023-12-20 03:37:40,974 INFO L226 Difference]: Without dead ends: 1128 [2023-12-20 03:37:40,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:37:40,983 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 3076 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3076 SdHoareTripleChecker+Valid, 2795 SdHoareTripleChecker+Invalid, 1974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:40,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3076 Valid, 2795 Invalid, 1974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:37:40,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2023-12-20 03:37:40,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 641. [2023-12-20 03:37:40,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3537964458804523) internal successors, (838), 640 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:40,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 838 transitions. [2023-12-20 03:37:40,998 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 838 transitions. Word has length 93 [2023-12-20 03:37:40,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:40,998 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 838 transitions. [2023-12-20 03:37:40,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:40,998 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 838 transitions. [2023-12-20 03:37:40,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:37:40,999 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:40,999 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] [2023-12-20 03:37:40,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-20 03:37:40,999 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:40,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:41,000 INFO L85 PathProgramCache]: Analyzing trace with hash 690949312, now seen corresponding path program 1 times [2023-12-20 03:37:41,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:41,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252265856] [2023-12-20 03:37:41,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:41,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:41,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:41,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:41,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252265856] [2023-12-20 03:37:41,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252265856] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:41,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:41,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:41,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005829510] [2023-12-20 03:37:41,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:41,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:41,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:41,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:41,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:41,152 INFO L87 Difference]: Start difference. First operand 641 states and 838 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:41,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:41,938 INFO L93 Difference]: Finished difference Result 1156 states and 1534 transitions. [2023-12-20 03:37:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:41,938 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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 [2023-12-20 03:37:41,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:41,940 INFO L225 Difference]: With dead ends: 1156 [2023-12-20 03:37:41,940 INFO L226 Difference]: Without dead ends: 1080 [2023-12-20 03:37:41,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:41,941 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 3461 mSDsluCounter, 1769 mSDsCounter, 0 mSdLazyCounter, 1900 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3461 SdHoareTripleChecker+Valid, 2331 SdHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:41,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3461 Valid, 2331 Invalid, 1904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1900 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:37:41,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2023-12-20 03:37:41,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 641. [2023-12-20 03:37:41,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3521809369951534) internal successors, (837), 640 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:41,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 837 transitions. [2023-12-20 03:37:41,956 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 837 transitions. Word has length 93 [2023-12-20 03:37:41,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:41,956 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 837 transitions. [2023-12-20 03:37:41,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:41,956 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 837 transitions. [2023-12-20 03:37:41,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:37:41,968 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:41,968 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] [2023-12-20 03:37:41,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-20 03:37:41,968 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:41,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:41,969 INFO L85 PathProgramCache]: Analyzing trace with hash -839930569, now seen corresponding path program 1 times [2023-12-20 03:37:41,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:41,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174424466] [2023-12-20 03:37:41,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:41,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:42,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:42,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:42,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174424466] [2023-12-20 03:37:42,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174424466] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:42,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:42,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:42,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626928476] [2023-12-20 03:37:42,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:42,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:42,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:42,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:42,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:42,160 INFO L87 Difference]: Start difference. First operand 641 states and 837 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:42,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:42,917 INFO L93 Difference]: Finished difference Result 1227 states and 1645 transitions. [2023-12-20 03:37:42,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:37:42,918 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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 [2023-12-20 03:37:42,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:42,920 INFO L225 Difference]: With dead ends: 1227 [2023-12-20 03:37:42,920 INFO L226 Difference]: Without dead ends: 1128 [2023-12-20 03:37:42,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:37:42,921 INFO L413 NwaCegarLoop]: 789 mSDtfsCounter, 1896 mSDsluCounter, 2410 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1896 SdHoareTripleChecker+Valid, 3199 SdHoareTripleChecker+Invalid, 2356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:42,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1896 Valid, 3199 Invalid, 2356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2351 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:37:42,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2023-12-20 03:37:42,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 641. [2023-12-20 03:37:42,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3505654281098547) internal successors, (836), 640 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:42,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 836 transitions. [2023-12-20 03:37:42,927 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 836 transitions. Word has length 93 [2023-12-20 03:37:42,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:42,928 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 836 transitions. [2023-12-20 03:37:42,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:42,928 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 836 transitions. [2023-12-20 03:37:42,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:37:42,929 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:42,929 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] [2023-12-20 03:37:42,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-20 03:37:42,929 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:42,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:42,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1312261900, now seen corresponding path program 1 times [2023-12-20 03:37:42,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:42,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949135953] [2023-12-20 03:37:42,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:42,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:43,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:43,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:43,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949135953] [2023-12-20 03:37:43,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949135953] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:43,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:43,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:43,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96319705] [2023-12-20 03:37:43,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:43,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:43,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:43,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:43,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:43,108 INFO L87 Difference]: Start difference. First operand 641 states and 836 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:43,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:43,897 INFO L93 Difference]: Finished difference Result 1156 states and 1531 transitions. [2023-12-20 03:37:43,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:43,897 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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 [2023-12-20 03:37:43,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:43,899 INFO L225 Difference]: With dead ends: 1156 [2023-12-20 03:37:43,899 INFO L226 Difference]: Without dead ends: 1080 [2023-12-20 03:37:43,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:43,900 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 2292 mSDsluCounter, 1920 mSDsCounter, 0 mSdLazyCounter, 2081 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2292 SdHoareTripleChecker+Valid, 2533 SdHoareTripleChecker+Invalid, 2084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:43,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2292 Valid, 2533 Invalid, 2084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2081 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:37:43,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2023-12-20 03:37:43,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 641. [2023-12-20 03:37:43,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3489499192245558) internal successors, (835), 640 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:43,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 835 transitions. [2023-12-20 03:37:43,906 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 835 transitions. Word has length 93 [2023-12-20 03:37:43,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:43,906 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 835 transitions. [2023-12-20 03:37:43,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:43,907 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 835 transitions. [2023-12-20 03:37:43,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:37:43,907 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:43,907 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] [2023-12-20 03:37:43,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-20 03:37:43,908 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:43,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:43,908 INFO L85 PathProgramCache]: Analyzing trace with hash -26562757, now seen corresponding path program 1 times [2023-12-20 03:37:43,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:43,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401390357] [2023-12-20 03:37:43,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:43,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:44,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:44,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:44,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401390357] [2023-12-20 03:37:44,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401390357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:44,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:44,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:44,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891214874] [2023-12-20 03:37:44,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:44,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:44,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:44,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:44,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:44,068 INFO L87 Difference]: Start difference. First operand 641 states and 835 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:45,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:45,071 INFO L93 Difference]: Finished difference Result 1222 states and 1637 transitions. [2023-12-20 03:37:45,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:37:45,071 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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 [2023-12-20 03:37:45,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:45,073 INFO L225 Difference]: With dead ends: 1222 [2023-12-20 03:37:45,073 INFO L226 Difference]: Without dead ends: 1128 [2023-12-20 03:37:45,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:37:45,074 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 2022 mSDsluCounter, 2433 mSDsCounter, 0 mSdLazyCounter, 2281 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2022 SdHoareTripleChecker+Valid, 3176 SdHoareTripleChecker+Invalid, 2285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:45,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2022 Valid, 3176 Invalid, 2285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2281 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:37:45,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2023-12-20 03:37:45,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 641. [2023-12-20 03:37:45,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3473344103392568) internal successors, (834), 640 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:45,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 834 transitions. [2023-12-20 03:37:45,080 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 834 transitions. Word has length 93 [2023-12-20 03:37:45,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:45,080 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 834 transitions. [2023-12-20 03:37:45,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:45,080 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 834 transitions. [2023-12-20 03:37:45,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:37:45,081 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:45,081 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] [2023-12-20 03:37:45,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-20 03:37:45,082 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:45,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:45,082 INFO L85 PathProgramCache]: Analyzing trace with hash -941703311, now seen corresponding path program 1 times [2023-12-20 03:37:45,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:45,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243419796] [2023-12-20 03:37:45,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:45,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:45,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:45,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:45,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243419796] [2023-12-20 03:37:45,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243419796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:45,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:45,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:45,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464824354] [2023-12-20 03:37:45,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:45,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:45,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:45,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:45,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:45,298 INFO L87 Difference]: Start difference. First operand 641 states and 834 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:46,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:46,333 INFO L93 Difference]: Finished difference Result 1227 states and 1641 transitions. [2023-12-20 03:37:46,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:37:46,333 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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 [2023-12-20 03:37:46,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:46,335 INFO L225 Difference]: With dead ends: 1227 [2023-12-20 03:37:46,335 INFO L226 Difference]: Without dead ends: 1128 [2023-12-20 03:37:46,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:37:46,335 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 2191 mSDsluCounter, 2402 mSDsCounter, 0 mSdLazyCounter, 2180 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 3106 SdHoareTripleChecker+Invalid, 2184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:46,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2191 Valid, 3106 Invalid, 2184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2180 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:37:46,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2023-12-20 03:37:46,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 641. [2023-12-20 03:37:46,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.345718901453958) internal successors, (833), 640 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:46,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 833 transitions. [2023-12-20 03:37:46,342 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 833 transitions. Word has length 93 [2023-12-20 03:37:46,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:46,342 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 833 transitions. [2023-12-20 03:37:46,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:46,342 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 833 transitions. [2023-12-20 03:37:46,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:37:46,343 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:46,343 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] [2023-12-20 03:37:46,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-20 03:37:46,343 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:46,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:46,344 INFO L85 PathProgramCache]: Analyzing trace with hash -170860907, now seen corresponding path program 1 times [2023-12-20 03:37:46,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:46,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833981817] [2023-12-20 03:37:46,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:46,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:46,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:46,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:46,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833981817] [2023-12-20 03:37:46,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833981817] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:46,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:46,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:46,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419135630] [2023-12-20 03:37:46,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:46,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:46,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:46,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:46,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:46,481 INFO L87 Difference]: Start difference. First operand 641 states and 833 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:47,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:47,325 INFO L93 Difference]: Finished difference Result 1156 states and 1527 transitions. [2023-12-20 03:37:47,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:47,325 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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 [2023-12-20 03:37:47,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:47,327 INFO L225 Difference]: With dead ends: 1156 [2023-12-20 03:37:47,327 INFO L226 Difference]: Without dead ends: 1080 [2023-12-20 03:37:47,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:47,328 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 3439 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 1886 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3439 SdHoareTripleChecker+Valid, 2326 SdHoareTripleChecker+Invalid, 1890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:47,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3439 Valid, 2326 Invalid, 1890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1886 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:37:47,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2023-12-20 03:37:47,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 641. [2023-12-20 03:37:47,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3441033925686592) internal successors, (832), 640 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:47,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 832 transitions. [2023-12-20 03:37:47,334 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 832 transitions. Word has length 93 [2023-12-20 03:37:47,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:47,335 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 832 transitions. [2023-12-20 03:37:47,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:47,335 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 832 transitions. [2023-12-20 03:37:47,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:37:47,335 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:47,336 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] [2023-12-20 03:37:47,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-20 03:37:47,336 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:47,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:47,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1086119729, now seen corresponding path program 1 times [2023-12-20 03:37:47,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:47,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217782975] [2023-12-20 03:37:47,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:47,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:47,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:47,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:47,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:47,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217782975] [2023-12-20 03:37:47,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217782975] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:47,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:47,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:47,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108698845] [2023-12-20 03:37:47,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:47,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:47,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:47,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:47,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:47,476 INFO L87 Difference]: Start difference. First operand 641 states and 832 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:48,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:48,300 INFO L93 Difference]: Finished difference Result 1236 states and 1648 transitions. [2023-12-20 03:37:48,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:37:48,300 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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 [2023-12-20 03:37:48,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:48,305 INFO L225 Difference]: With dead ends: 1236 [2023-12-20 03:37:48,305 INFO L226 Difference]: Without dead ends: 1128 [2023-12-20 03:37:48,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:37:48,306 INFO L413 NwaCegarLoop]: 786 mSDtfsCounter, 1900 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 2322 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1900 SdHoareTripleChecker+Valid, 3200 SdHoareTripleChecker+Invalid, 2327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:48,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1900 Valid, 3200 Invalid, 2327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2322 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:37:48,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2023-12-20 03:37:48,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 641. [2023-12-20 03:37:48,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3424878836833603) internal successors, (831), 640 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:48,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 831 transitions. [2023-12-20 03:37:48,315 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 831 transitions. Word has length 93 [2023-12-20 03:37:48,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:48,315 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 831 transitions. [2023-12-20 03:37:48,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:48,315 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 831 transitions. [2023-12-20 03:37:48,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 03:37:48,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:48,316 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] [2023-12-20 03:37:48,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-20 03:37:48,316 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:48,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:48,317 INFO L85 PathProgramCache]: Analyzing trace with hash -960925632, now seen corresponding path program 1 times [2023-12-20 03:37:48,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:48,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744450062] [2023-12-20 03:37:48,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:48,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:48,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:48,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:48,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744450062] [2023-12-20 03:37:48,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744450062] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:48,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:48,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:48,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138107974] [2023-12-20 03:37:48,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:48,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:48,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:48,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:48,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:48,450 INFO L87 Difference]: Start difference. First operand 641 states and 831 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:49,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:49,241 INFO L93 Difference]: Finished difference Result 1159 states and 1527 transitions. [2023-12-20 03:37:49,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:49,242 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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 [2023-12-20 03:37:49,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:49,243 INFO L225 Difference]: With dead ends: 1159 [2023-12-20 03:37:49,243 INFO L226 Difference]: Without dead ends: 1080 [2023-12-20 03:37:49,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:49,246 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 3437 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3437 SdHoareTripleChecker+Valid, 2327 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:49,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3437 Valid, 2327 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1873 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:37:49,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2023-12-20 03:37:49,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 641. [2023-12-20 03:37:49,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3408723747980613) internal successors, (830), 640 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:49,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 830 transitions. [2023-12-20 03:37:49,270 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 830 transitions. Word has length 93 [2023-12-20 03:37:49,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:49,270 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 830 transitions. [2023-12-20 03:37:49,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 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) [2023-12-20 03:37:49,270 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 830 transitions. [2023-12-20 03:37:49,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-20 03:37:49,271 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:49,271 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] [2023-12-20 03:37:49,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-20 03:37:49,271 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:49,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:49,271 INFO L85 PathProgramCache]: Analyzing trace with hash 15926189, now seen corresponding path program 1 times [2023-12-20 03:37:49,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:49,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773538396] [2023-12-20 03:37:49,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:49,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:49,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:49,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:49,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773538396] [2023-12-20 03:37:49,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773538396] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:49,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:49,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:49,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913671342] [2023-12-20 03:37:49,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:49,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:49,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:49,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:49,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:49,431 INFO L87 Difference]: Start difference. First operand 641 states and 830 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 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) [2023-12-20 03:37:50,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:50,319 INFO L93 Difference]: Finished difference Result 1284 states and 1710 transitions. [2023-12-20 03:37:50,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:50,320 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 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 [2023-12-20 03:37:50,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:50,321 INFO L225 Difference]: With dead ends: 1284 [2023-12-20 03:37:50,321 INFO L226 Difference]: Without dead ends: 1131 [2023-12-20 03:37:50,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:50,323 INFO L413 NwaCegarLoop]: 800 mSDtfsCounter, 3212 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3212 SdHoareTripleChecker+Valid, 3053 SdHoareTripleChecker+Invalid, 2276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:50,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3212 Valid, 3053 Invalid, 2276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:37:50,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-12-20 03:37:50,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 637. [2023-12-20 03:37:50,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 615 states have (on average 1.3414634146341464) internal successors, (825), 636 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:50,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 825 transitions. [2023-12-20 03:37:50,330 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 825 transitions. Word has length 94 [2023-12-20 03:37:50,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:50,330 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 825 transitions. [2023-12-20 03:37:50,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 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) [2023-12-20 03:37:50,330 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 825 transitions. [2023-12-20 03:37:50,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-20 03:37:50,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:50,331 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] [2023-12-20 03:37:50,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-20 03:37:50,331 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:50,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:50,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1752046435, now seen corresponding path program 1 times [2023-12-20 03:37:50,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:50,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580849601] [2023-12-20 03:37:50,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:50,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:50,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:50,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:50,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580849601] [2023-12-20 03:37:50,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580849601] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:50,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:50,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:50,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683530868] [2023-12-20 03:37:50,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:50,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:50,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:50,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:50,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:50,482 INFO L87 Difference]: Start difference. First operand 637 states and 825 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 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) [2023-12-20 03:37:51,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:51,299 INFO L93 Difference]: Finished difference Result 1149 states and 1514 transitions. [2023-12-20 03:37:51,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:51,300 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 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 [2023-12-20 03:37:51,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:51,301 INFO L225 Difference]: With dead ends: 1149 [2023-12-20 03:37:51,301 INFO L226 Difference]: Without dead ends: 1074 [2023-12-20 03:37:51,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:51,302 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 3415 mSDsluCounter, 1766 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3415 SdHoareTripleChecker+Valid, 2327 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:51,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3415 Valid, 2327 Invalid, 1869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:37:51,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2023-12-20 03:37:51,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 636. [2023-12-20 03:37:51,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3403908794788273) internal successors, (823), 635 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:51,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 823 transitions. [2023-12-20 03:37:51,307 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 823 transitions. Word has length 94 [2023-12-20 03:37:51,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:51,307 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 823 transitions. [2023-12-20 03:37:51,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 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) [2023-12-20 03:37:51,308 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 823 transitions. [2023-12-20 03:37:51,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:37:51,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:51,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:51,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-20 03:37:51,309 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:51,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:51,309 INFO L85 PathProgramCache]: Analyzing trace with hash 296209564, now seen corresponding path program 1 times [2023-12-20 03:37:51,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:51,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287133246] [2023-12-20 03:37:51,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:51,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:51,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:51,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:51,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287133246] [2023-12-20 03:37:51,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287133246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:51,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:51,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:51,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912114673] [2023-12-20 03:37:51,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:51,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:51,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:51,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:51,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:51,451 INFO L87 Difference]: Start difference. First operand 636 states and 823 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:37:52,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:52,429 INFO L93 Difference]: Finished difference Result 1198 states and 1588 transitions. [2023-12-20 03:37:52,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:52,429 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:37:52,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:52,431 INFO L225 Difference]: With dead ends: 1198 [2023-12-20 03:37:52,431 INFO L226 Difference]: Without dead ends: 1107 [2023-12-20 03:37:52,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-20 03:37:52,431 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 3411 mSDsluCounter, 2034 mSDsCounter, 0 mSdLazyCounter, 1998 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3411 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 2003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:52,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3411 Valid, 2653 Invalid, 2003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1998 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:37:52,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2023-12-20 03:37:52,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 636. [2023-12-20 03:37:52,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3387622149837133) internal successors, (822), 635 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:52,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 822 transitions. [2023-12-20 03:37:52,436 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 822 transitions. Word has length 95 [2023-12-20 03:37:52,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:52,437 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 822 transitions. [2023-12-20 03:37:52,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:37:52,437 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 822 transitions. [2023-12-20 03:37:52,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:37:52,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:52,437 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] [2023-12-20 03:37:52,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-20 03:37:52,438 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:52,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:52,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1335545213, now seen corresponding path program 1 times [2023-12-20 03:37:52,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:52,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164004799] [2023-12-20 03:37:52,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:52,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:52,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:52,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:52,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164004799] [2023-12-20 03:37:52,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164004799] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:52,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:52,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:52,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953203457] [2023-12-20 03:37:52,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:52,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:52,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:52,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:52,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:52,608 INFO L87 Difference]: Start difference. First operand 636 states and 822 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:37:53,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:53,469 INFO L93 Difference]: Finished difference Result 1153 states and 1515 transitions. [2023-12-20 03:37:53,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:53,470 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:37:53,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:53,472 INFO L225 Difference]: With dead ends: 1153 [2023-12-20 03:37:53,472 INFO L226 Difference]: Without dead ends: 1074 [2023-12-20 03:37:53,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:53,472 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 3364 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3364 SdHoareTripleChecker+Valid, 2382 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:53,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3364 Valid, 2382 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1873 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:37:53,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2023-12-20 03:37:53,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 636. [2023-12-20 03:37:53,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3371335504885993) internal successors, (821), 635 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:53,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 821 transitions. [2023-12-20 03:37:53,478 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 821 transitions. Word has length 95 [2023-12-20 03:37:53,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:53,478 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 821 transitions. [2023-12-20 03:37:53,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:37:53,478 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 821 transitions. [2023-12-20 03:37:53,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:37:53,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:53,479 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] [2023-12-20 03:37:53,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-20 03:37:53,479 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:53,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:53,479 INFO L85 PathProgramCache]: Analyzing trace with hash -186851275, now seen corresponding path program 1 times [2023-12-20 03:37:53,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:53,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780014739] [2023-12-20 03:37:53,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:53,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:53,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:53,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:53,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780014739] [2023-12-20 03:37:53,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780014739] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:53,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:53,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:53,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250896996] [2023-12-20 03:37:53,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:53,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:53,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:53,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:53,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:53,613 INFO L87 Difference]: Start difference. First operand 636 states and 821 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:37:54,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:54,543 INFO L93 Difference]: Finished difference Result 1237 states and 1638 transitions. [2023-12-20 03:37:54,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:37:54,544 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:37:54,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:54,545 INFO L225 Difference]: With dead ends: 1237 [2023-12-20 03:37:54,546 INFO L226 Difference]: Without dead ends: 1123 [2023-12-20 03:37:54,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:37:54,546 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 1893 mSDsluCounter, 2993 mSDsCounter, 0 mSdLazyCounter, 2703 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 3871 SdHoareTripleChecker+Invalid, 2707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:54,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1893 Valid, 3871 Invalid, 2707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2703 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:37:54,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2023-12-20 03:37:54,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 636. [2023-12-20 03:37:54,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3355048859934853) internal successors, (820), 635 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:54,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 820 transitions. [2023-12-20 03:37:54,552 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 820 transitions. Word has length 95 [2023-12-20 03:37:54,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:54,552 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 820 transitions. [2023-12-20 03:37:54,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:37:54,552 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 820 transitions. [2023-12-20 03:37:54,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:37:54,553 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:54,553 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] [2023-12-20 03:37:54,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-20 03:37:54,553 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:54,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:54,553 INFO L85 PathProgramCache]: Analyzing trace with hash -605094739, now seen corresponding path program 1 times [2023-12-20 03:37:54,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:54,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308128439] [2023-12-20 03:37:54,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:54,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:54,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:54,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:54,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308128439] [2023-12-20 03:37:54,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308128439] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:54,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:54,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:54,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298647211] [2023-12-20 03:37:54,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:54,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:54,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:54,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:54,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:54,689 INFO L87 Difference]: Start difference. First operand 636 states and 820 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:37:55,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:55,339 INFO L93 Difference]: Finished difference Result 1153 states and 1513 transitions. [2023-12-20 03:37:55,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:55,339 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:37:55,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:55,341 INFO L225 Difference]: With dead ends: 1153 [2023-12-20 03:37:55,341 INFO L226 Difference]: Without dead ends: 1074 [2023-12-20 03:37:55,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:55,358 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 2330 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2330 SdHoareTripleChecker+Valid, 2382 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:55,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2330 Valid, 2382 Invalid, 1870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1866 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:37:55,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2023-12-20 03:37:55,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 636. [2023-12-20 03:37:55,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3338762214983713) internal successors, (819), 635 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:55,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 819 transitions. [2023-12-20 03:37:55,363 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 819 transitions. Word has length 95 [2023-12-20 03:37:55,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:55,363 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 819 transitions. [2023-12-20 03:37:55,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:37:55,364 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 819 transitions. [2023-12-20 03:37:55,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:37:55,364 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:55,365 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] [2023-12-20 03:37:55,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-20 03:37:55,365 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:55,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:55,366 INFO L85 PathProgramCache]: Analyzing trace with hash -174985950, now seen corresponding path program 1 times [2023-12-20 03:37:55,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:55,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478287362] [2023-12-20 03:37:55,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:55,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:55,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:55,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:55,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478287362] [2023-12-20 03:37:55,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478287362] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:55,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:55,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:55,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973248004] [2023-12-20 03:37:55,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:55,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:55,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:55,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:55,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:55,494 INFO L87 Difference]: Start difference. First operand 636 states and 819 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:37:56,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:56,391 INFO L93 Difference]: Finished difference Result 1150 states and 1509 transitions. [2023-12-20 03:37:56,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:56,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:37:56,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:56,393 INFO L225 Difference]: With dead ends: 1150 [2023-12-20 03:37:56,393 INFO L226 Difference]: Without dead ends: 1074 [2023-12-20 03:37:56,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:56,394 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 2325 mSDsluCounter, 1808 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2325 SdHoareTripleChecker+Valid, 2382 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:56,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2325 Valid, 2382 Invalid, 1870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1866 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:37:56,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2023-12-20 03:37:56,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 636. [2023-12-20 03:37:56,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3322475570032573) internal successors, (818), 635 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:56,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 818 transitions. [2023-12-20 03:37:56,399 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 818 transitions. Word has length 95 [2023-12-20 03:37:56,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:56,399 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 818 transitions. [2023-12-20 03:37:56,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:37:56,399 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 818 transitions. [2023-12-20 03:37:56,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:37:56,399 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:56,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:37:56,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-20 03:37:56,400 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:56,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:56,400 INFO L85 PathProgramCache]: Analyzing trace with hash -188296274, now seen corresponding path program 1 times [2023-12-20 03:37:56,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:56,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661165738] [2023-12-20 03:37:56,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:56,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:56,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:56,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:56,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661165738] [2023-12-20 03:37:56,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661165738] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:56,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:56,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:56,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191498211] [2023-12-20 03:37:56,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:56,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:56,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:56,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:56,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:56,539 INFO L87 Difference]: Start difference. First operand 636 states and 818 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:37:57,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:57,512 INFO L93 Difference]: Finished difference Result 1193 states and 1577 transitions. [2023-12-20 03:37:57,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:57,512 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:37:57,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:57,513 INFO L225 Difference]: With dead ends: 1193 [2023-12-20 03:37:57,513 INFO L226 Difference]: Without dead ends: 1107 [2023-12-20 03:37:57,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-20 03:37:57,514 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 3012 mSDsluCounter, 2226 mSDsCounter, 0 mSdLazyCounter, 2182 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3012 SdHoareTripleChecker+Valid, 2923 SdHoareTripleChecker+Invalid, 2186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:57,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3012 Valid, 2923 Invalid, 2186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2182 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:37:57,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2023-12-20 03:37:57,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 636. [2023-12-20 03:37:57,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3306188925081432) internal successors, (817), 635 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:57,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 817 transitions. [2023-12-20 03:37:57,520 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 817 transitions. Word has length 95 [2023-12-20 03:37:57,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:57,520 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 817 transitions. [2023-12-20 03:37:57,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:37:57,520 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 817 transitions. [2023-12-20 03:37:57,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:37:57,521 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:57,521 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] [2023-12-20 03:37:57,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-20 03:37:57,521 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:57,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:57,521 INFO L85 PathProgramCache]: Analyzing trace with hash -880482986, now seen corresponding path program 1 times [2023-12-20 03:37:57,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:57,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726257039] [2023-12-20 03:37:57,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:57,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:57,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:57,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:57,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726257039] [2023-12-20 03:37:57,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726257039] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:57,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:57,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:57,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252837000] [2023-12-20 03:37:57,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:57,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:57,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:57,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:57,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:57,663 INFO L87 Difference]: Start difference. First operand 636 states and 817 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:37:58,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:58,299 INFO L93 Difference]: Finished difference Result 1079 states and 1399 transitions. [2023-12-20 03:37:58,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:58,299 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:37:58,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:58,301 INFO L225 Difference]: With dead ends: 1079 [2023-12-20 03:37:58,301 INFO L226 Difference]: Without dead ends: 1074 [2023-12-20 03:37:58,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:58,301 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 2307 mSDsluCounter, 1835 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2307 SdHoareTripleChecker+Valid, 2419 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:58,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2307 Valid, 2419 Invalid, 1878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1874 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:37:58,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2023-12-20 03:37:58,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 636. [2023-12-20 03:37:58,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3289902280130292) internal successors, (816), 635 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:58,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 816 transitions. [2023-12-20 03:37:58,307 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 816 transitions. Word has length 95 [2023-12-20 03:37:58,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:58,307 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 816 transitions. [2023-12-20 03:37:58,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:37:58,307 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 816 transitions. [2023-12-20 03:37:58,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:37:58,308 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:58,308 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] [2023-12-20 03:37:58,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-20 03:37:58,308 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:58,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:58,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1836058637, now seen corresponding path program 1 times [2023-12-20 03:37:58,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:58,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128446133] [2023-12-20 03:37:58,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:58,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:58,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:58,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:58,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:58,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128446133] [2023-12-20 03:37:58,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128446133] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:58,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:58,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:58,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031337847] [2023-12-20 03:37:58,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:58,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:58,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:58,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:58,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:58,448 INFO L87 Difference]: Start difference. First operand 636 states and 816 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:37:59,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:37:59,033 INFO L93 Difference]: Finished difference Result 1150 states and 1506 transitions. [2023-12-20 03:37:59,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:37:59,034 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:37:59,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:37:59,035 INFO L225 Difference]: With dead ends: 1150 [2023-12-20 03:37:59,035 INFO L226 Difference]: Without dead ends: 1074 [2023-12-20 03:37:59,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:37:59,036 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 3312 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 1870 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3312 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:37:59,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3312 Valid, 2422 Invalid, 1874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1870 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:37:59,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2023-12-20 03:37:59,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 636. [2023-12-20 03:37:59,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3273615635179152) internal successors, (815), 635 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:37:59,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 815 transitions. [2023-12-20 03:37:59,041 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 815 transitions. Word has length 95 [2023-12-20 03:37:59,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:37:59,041 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 815 transitions. [2023-12-20 03:37:59,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:37:59,041 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 815 transitions. [2023-12-20 03:37:59,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:37:59,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:37:59,042 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] [2023-12-20 03:37:59,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-20 03:37:59,042 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:37:59,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:37:59,042 INFO L85 PathProgramCache]: Analyzing trace with hash -771722089, now seen corresponding path program 1 times [2023-12-20 03:37:59,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:37:59,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774981863] [2023-12-20 03:37:59,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:37:59,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:37:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:37:59,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:37:59,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:37:59,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774981863] [2023-12-20 03:37:59,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774981863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:37:59,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:37:59,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:37:59,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29168826] [2023-12-20 03:37:59,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:37:59,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:37:59,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:37:59,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:37:59,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:37:59,177 INFO L87 Difference]: Start difference. First operand 636 states and 815 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:00,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:00,367 INFO L93 Difference]: Finished difference Result 1193 states and 1572 transitions. [2023-12-20 03:38:00,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:00,368 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:38:00,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:00,372 INFO L225 Difference]: With dead ends: 1193 [2023-12-20 03:38:00,372 INFO L226 Difference]: Without dead ends: 1107 [2023-12-20 03:38:00,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-20 03:38:00,372 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 2807 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2807 SdHoareTripleChecker+Valid, 3127 SdHoareTripleChecker+Invalid, 2356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:00,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2807 Valid, 3127 Invalid, 2356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2353 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 03:38:00,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2023-12-20 03:38:00,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 636. [2023-12-20 03:38:00,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3257328990228012) internal successors, (814), 635 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:00,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 814 transitions. [2023-12-20 03:38:00,378 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 814 transitions. Word has length 95 [2023-12-20 03:38:00,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:00,378 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 814 transitions. [2023-12-20 03:38:00,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:00,378 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 814 transitions. [2023-12-20 03:38:00,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:38:00,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:00,379 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] [2023-12-20 03:38:00,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-20 03:38:00,379 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:00,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:00,379 INFO L85 PathProgramCache]: Analyzing trace with hash 851489864, now seen corresponding path program 1 times [2023-12-20 03:38:00,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:00,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911515204] [2023-12-20 03:38:00,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:00,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:00,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:00,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:00,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911515204] [2023-12-20 03:38:00,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911515204] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:00,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:00,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:00,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104023605] [2023-12-20 03:38:00,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:00,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:00,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:00,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:00,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:00,508 INFO L87 Difference]: Start difference. First operand 636 states and 814 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:01,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:01,364 INFO L93 Difference]: Finished difference Result 1079 states and 1396 transitions. [2023-12-20 03:38:01,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:01,364 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:38:01,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:01,365 INFO L225 Difference]: With dead ends: 1079 [2023-12-20 03:38:01,365 INFO L226 Difference]: Without dead ends: 1074 [2023-12-20 03:38:01,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:38:01,366 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 3170 mSDsluCounter, 1966 mSDsCounter, 0 mSdLazyCounter, 2030 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3170 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 2034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:01,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3170 Valid, 2618 Invalid, 2034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2030 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:38:01,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2023-12-20 03:38:01,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 636. [2023-12-20 03:38:01,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3241042345276872) internal successors, (813), 635 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:01,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 813 transitions. [2023-12-20 03:38:01,371 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 813 transitions. Word has length 95 [2023-12-20 03:38:01,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:01,371 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 813 transitions. [2023-12-20 03:38:01,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:01,371 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 813 transitions. [2023-12-20 03:38:01,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:38:01,372 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:01,372 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] [2023-12-20 03:38:01,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-20 03:38:01,372 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:01,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:01,373 INFO L85 PathProgramCache]: Analyzing trace with hash 740784075, now seen corresponding path program 1 times [2023-12-20 03:38:01,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:01,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995101173] [2023-12-20 03:38:01,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:01,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:01,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:01,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:01,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995101173] [2023-12-20 03:38:01,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995101173] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:01,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:01,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:01,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651693670] [2023-12-20 03:38:01,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:01,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:01,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:01,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:01,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:01,515 INFO L87 Difference]: Start difference. First operand 636 states and 813 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:02,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:02,449 INFO L93 Difference]: Finished difference Result 1150 states and 1502 transitions. [2023-12-20 03:38:02,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:02,449 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:38:02,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:02,450 INFO L225 Difference]: With dead ends: 1150 [2023-12-20 03:38:02,451 INFO L226 Difference]: Without dead ends: 1074 [2023-12-20 03:38:02,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:38:02,451 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 3275 mSDsluCounter, 1862 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3275 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:02,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3275 Valid, 2454 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1873 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:38:02,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2023-12-20 03:38:02,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 636. [2023-12-20 03:38:02,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3224755700325732) internal successors, (812), 635 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:02,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 812 transitions. [2023-12-20 03:38:02,456 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 812 transitions. Word has length 95 [2023-12-20 03:38:02,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:02,456 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 812 transitions. [2023-12-20 03:38:02,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:02,457 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 812 transitions. [2023-12-20 03:38:02,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:38:02,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:02,457 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] [2023-12-20 03:38:02,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-20 03:38:02,458 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:02,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:02,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1342768443, now seen corresponding path program 1 times [2023-12-20 03:38:02,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:02,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792978619] [2023-12-20 03:38:02,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:02,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:02,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:02,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:02,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792978619] [2023-12-20 03:38:02,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792978619] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:02,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:02,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:02,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657655084] [2023-12-20 03:38:02,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:02,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:02,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:02,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:02,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:02,597 INFO L87 Difference]: Start difference. First operand 636 states and 812 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:03,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:03,466 INFO L93 Difference]: Finished difference Result 1189 states and 1564 transitions. [2023-12-20 03:38:03,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:03,466 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:38:03,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:03,467 INFO L225 Difference]: With dead ends: 1189 [2023-12-20 03:38:03,467 INFO L226 Difference]: Without dead ends: 1107 [2023-12-20 03:38:03,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-20 03:38:03,468 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 2832 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 2331 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2832 SdHoareTripleChecker+Valid, 3094 SdHoareTripleChecker+Invalid, 2334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:03,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2832 Valid, 3094 Invalid, 2334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2331 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:38:03,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2023-12-20 03:38:03,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 636. [2023-12-20 03:38:03,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3208469055374592) internal successors, (811), 635 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:03,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 811 transitions. [2023-12-20 03:38:03,473 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 811 transitions. Word has length 95 [2023-12-20 03:38:03,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:03,473 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 811 transitions. [2023-12-20 03:38:03,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:03,473 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 811 transitions. [2023-12-20 03:38:03,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:38:03,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:03,474 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] [2023-12-20 03:38:03,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-20 03:38:03,474 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:03,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:03,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1975449778, now seen corresponding path program 1 times [2023-12-20 03:38:03,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:03,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766404640] [2023-12-20 03:38:03,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:03,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:03,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:03,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:03,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766404640] [2023-12-20 03:38:03,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766404640] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:03,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:03,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:03,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113682183] [2023-12-20 03:38:03,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:03,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:03,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:03,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:03,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:03,619 INFO L87 Difference]: Start difference. First operand 636 states and 811 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:04,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:04,332 INFO L93 Difference]: Finished difference Result 1150 states and 1500 transitions. [2023-12-20 03:38:04,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:04,333 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:38:04,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:04,334 INFO L225 Difference]: With dead ends: 1150 [2023-12-20 03:38:04,334 INFO L226 Difference]: Without dead ends: 1074 [2023-12-20 03:38:04,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:38:04,334 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 2266 mSDsluCounter, 1877 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2266 SdHoareTripleChecker+Valid, 2474 SdHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:04,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2266 Valid, 2474 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:38:04,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2023-12-20 03:38:04,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 636. [2023-12-20 03:38:04,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3192182410423452) internal successors, (810), 635 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:04,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 810 transitions. [2023-12-20 03:38:04,339 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 810 transitions. Word has length 95 [2023-12-20 03:38:04,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:04,340 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 810 transitions. [2023-12-20 03:38:04,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:04,340 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 810 transitions. [2023-12-20 03:38:04,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:38:04,340 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:04,340 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] [2023-12-20 03:38:04,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-20 03:38:04,341 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:04,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:04,341 INFO L85 PathProgramCache]: Analyzing trace with hash 305613409, now seen corresponding path program 1 times [2023-12-20 03:38:04,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:04,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991526044] [2023-12-20 03:38:04,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:04,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:04,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:04,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:04,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991526044] [2023-12-20 03:38:04,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991526044] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:04,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:04,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:04,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160564262] [2023-12-20 03:38:04,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:04,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:04,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:04,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:04,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:04,493 INFO L87 Difference]: Start difference. First operand 636 states and 810 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:05,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:05,374 INFO L93 Difference]: Finished difference Result 1079 states and 1391 transitions. [2023-12-20 03:38:05,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:05,374 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:38:05,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:05,375 INFO L225 Difference]: With dead ends: 1079 [2023-12-20 03:38:05,375 INFO L226 Difference]: Without dead ends: 1074 [2023-12-20 03:38:05,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:38:05,376 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 2156 mSDsluCounter, 1981 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2156 SdHoareTripleChecker+Valid, 2638 SdHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:05,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2156 Valid, 2638 Invalid, 2033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:38:05,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2023-12-20 03:38:05,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 636. [2023-12-20 03:38:05,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3175895765472312) internal successors, (809), 635 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:05,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 809 transitions. [2023-12-20 03:38:05,381 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 809 transitions. Word has length 95 [2023-12-20 03:38:05,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:05,381 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 809 transitions. [2023-12-20 03:38:05,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:05,381 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 809 transitions. [2023-12-20 03:38:05,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:38:05,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:05,382 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] [2023-12-20 03:38:05,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-20 03:38:05,382 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:05,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:05,382 INFO L85 PathProgramCache]: Analyzing trace with hash -2075594127, now seen corresponding path program 1 times [2023-12-20 03:38:05,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:05,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104931211] [2023-12-20 03:38:05,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:05,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:05,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:05,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:05,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104931211] [2023-12-20 03:38:05,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104931211] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:05,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:05,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:05,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074262763] [2023-12-20 03:38:05,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:05,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:05,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:05,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:05,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:05,529 INFO L87 Difference]: Start difference. First operand 636 states and 809 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:06,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:06,491 INFO L93 Difference]: Finished difference Result 1189 states and 1559 transitions. [2023-12-20 03:38:06,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:06,492 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:38:06,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:06,493 INFO L225 Difference]: With dead ends: 1189 [2023-12-20 03:38:06,493 INFO L226 Difference]: Without dead ends: 1107 [2023-12-20 03:38:06,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-20 03:38:06,494 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 2787 mSDsluCounter, 2382 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2787 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 2312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:06,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2787 Valid, 3130 Invalid, 2312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:38:06,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2023-12-20 03:38:06,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 636. [2023-12-20 03:38:06,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3159609120521172) internal successors, (808), 635 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:06,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 808 transitions. [2023-12-20 03:38:06,499 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 808 transitions. Word has length 95 [2023-12-20 03:38:06,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:06,499 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 808 transitions. [2023-12-20 03:38:06,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:06,499 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 808 transitions. [2023-12-20 03:38:06,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:38:06,500 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:06,500 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] [2023-12-20 03:38:06,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-20 03:38:06,500 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:06,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:06,500 INFO L85 PathProgramCache]: Analyzing trace with hash -189923424, now seen corresponding path program 1 times [2023-12-20 03:38:06,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:06,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768436627] [2023-12-20 03:38:06,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:06,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:06,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:06,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:06,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768436627] [2023-12-20 03:38:06,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768436627] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:06,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:06,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:06,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582048379] [2023-12-20 03:38:06,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:06,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:06,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:06,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:06,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:06,654 INFO L87 Difference]: Start difference. First operand 636 states and 808 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:07,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:07,672 INFO L93 Difference]: Finished difference Result 1150 states and 1496 transitions. [2023-12-20 03:38:07,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:07,673 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:38:07,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:07,674 INFO L225 Difference]: With dead ends: 1150 [2023-12-20 03:38:07,674 INFO L226 Difference]: Without dead ends: 1074 [2023-12-20 03:38:07,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:38:07,674 INFO L413 NwaCegarLoop]: 709 mSDtfsCounter, 2919 mSDsluCounter, 2141 mSDsCounter, 0 mSdLazyCounter, 2225 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2919 SdHoareTripleChecker+Valid, 2850 SdHoareTripleChecker+Invalid, 2228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:07,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2919 Valid, 2850 Invalid, 2228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2225 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:38:07,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2023-12-20 03:38:07,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 636. [2023-12-20 03:38:07,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3143322475570032) internal successors, (807), 635 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:07,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 807 transitions. [2023-12-20 03:38:07,680 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 807 transitions. Word has length 95 [2023-12-20 03:38:07,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:07,680 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 807 transitions. [2023-12-20 03:38:07,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:07,680 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 807 transitions. [2023-12-20 03:38:07,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:38:07,681 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:07,681 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] [2023-12-20 03:38:07,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-20 03:38:07,681 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:07,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:07,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1916605268, now seen corresponding path program 1 times [2023-12-20 03:38:07,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:07,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166881095] [2023-12-20 03:38:07,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:07,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:07,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:07,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:07,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166881095] [2023-12-20 03:38:07,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166881095] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:07,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:07,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:07,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322978854] [2023-12-20 03:38:07,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:07,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:07,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:07,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:07,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:07,813 INFO L87 Difference]: Start difference. First operand 636 states and 807 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:08,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:08,781 INFO L93 Difference]: Finished difference Result 1153 states and 1497 transitions. [2023-12-20 03:38:08,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:08,781 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:38:08,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:08,782 INFO L225 Difference]: With dead ends: 1153 [2023-12-20 03:38:08,782 INFO L226 Difference]: Without dead ends: 1074 [2023-12-20 03:38:08,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:38:08,783 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 2139 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 2027 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2139 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 2031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:08,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2139 Valid, 2656 Invalid, 2031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2027 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:38:08,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2023-12-20 03:38:08,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 636. [2023-12-20 03:38:08,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3127035830618892) internal successors, (806), 635 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:08,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 806 transitions. [2023-12-20 03:38:08,788 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 806 transitions. Word has length 95 [2023-12-20 03:38:08,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:08,788 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 806 transitions. [2023-12-20 03:38:08,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:08,788 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 806 transitions. [2023-12-20 03:38:08,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:38:08,789 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:08,789 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] [2023-12-20 03:38:08,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-20 03:38:08,789 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:08,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:08,790 INFO L85 PathProgramCache]: Analyzing trace with hash -249249413, now seen corresponding path program 1 times [2023-12-20 03:38:08,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:08,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809877895] [2023-12-20 03:38:08,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:08,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:08,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:08,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:08,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809877895] [2023-12-20 03:38:08,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809877895] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:08,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:08,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:08,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87904089] [2023-12-20 03:38:08,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:08,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:08,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:08,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:08,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:08,927 INFO L87 Difference]: Start difference. First operand 636 states and 806 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:09,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:09,580 INFO L93 Difference]: Finished difference Result 1150 states and 1492 transitions. [2023-12-20 03:38:09,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:09,580 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:38:09,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:09,582 INFO L225 Difference]: With dead ends: 1150 [2023-12-20 03:38:09,582 INFO L226 Difference]: Without dead ends: 1074 [2023-12-20 03:38:09,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:38:09,583 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 2244 mSDsluCounter, 1889 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2244 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:09,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2244 Valid, 2490 Invalid, 1878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1874 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:38:09,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2023-12-20 03:38:09,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 636. [2023-12-20 03:38:09,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3110749185667752) internal successors, (805), 635 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:09,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 805 transitions. [2023-12-20 03:38:09,588 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 805 transitions. Word has length 95 [2023-12-20 03:38:09,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:09,588 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 805 transitions. [2023-12-20 03:38:09,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:09,588 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 805 transitions. [2023-12-20 03:38:09,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:38:09,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:09,589 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] [2023-12-20 03:38:09,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-20 03:38:09,589 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:09,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:09,589 INFO L85 PathProgramCache]: Analyzing trace with hash 953903994, now seen corresponding path program 1 times [2023-12-20 03:38:09,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:09,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809827586] [2023-12-20 03:38:09,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:09,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:09,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:09,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:09,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809827586] [2023-12-20 03:38:09,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809827586] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:09,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:09,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:09,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525334489] [2023-12-20 03:38:09,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:09,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:09,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:09,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:09,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:09,729 INFO L87 Difference]: Start difference. First operand 636 states and 805 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:10,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:10,636 INFO L93 Difference]: Finished difference Result 1189 states and 1552 transitions. [2023-12-20 03:38:10,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:10,637 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:38:10,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:10,638 INFO L225 Difference]: With dead ends: 1189 [2023-12-20 03:38:10,638 INFO L226 Difference]: Without dead ends: 1107 [2023-12-20 03:38:10,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-20 03:38:10,638 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 2969 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 2091 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2969 SdHoareTripleChecker+Valid, 2927 SdHoareTripleChecker+Invalid, 2095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:10,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2969 Valid, 2927 Invalid, 2095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2091 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 03:38:10,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2023-12-20 03:38:10,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 636. [2023-12-20 03:38:10,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3094462540716612) internal successors, (804), 635 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:10,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 804 transitions. [2023-12-20 03:38:10,644 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 804 transitions. Word has length 95 [2023-12-20 03:38:10,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:10,645 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 804 transitions. [2023-12-20 03:38:10,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:10,645 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 804 transitions. [2023-12-20 03:38:10,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:38:10,645 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:10,645 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] [2023-12-20 03:38:10,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-20 03:38:10,646 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:10,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:10,647 INFO L85 PathProgramCache]: Analyzing trace with hash 136430715, now seen corresponding path program 1 times [2023-12-20 03:38:10,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:10,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571661367] [2023-12-20 03:38:10,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:10,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:10,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:10,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:10,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571661367] [2023-12-20 03:38:10,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571661367] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:10,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:10,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:10,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902889293] [2023-12-20 03:38:10,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:10,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:10,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:10,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:10,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:10,817 INFO L87 Difference]: Start difference. First operand 636 states and 804 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:11,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:11,820 INFO L93 Difference]: Finished difference Result 1193 states and 1555 transitions. [2023-12-20 03:38:11,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:11,821 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:38:11,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:11,822 INFO L225 Difference]: With dead ends: 1193 [2023-12-20 03:38:11,822 INFO L226 Difference]: Without dead ends: 1107 [2023-12-20 03:38:11,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-20 03:38:11,823 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 3075 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 1990 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3075 SdHoareTripleChecker+Valid, 2819 SdHoareTripleChecker+Invalid, 1994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:11,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3075 Valid, 2819 Invalid, 1994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1990 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:38:11,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2023-12-20 03:38:11,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 636. [2023-12-20 03:38:11,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3078175895765471) internal successors, (803), 635 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:11,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 803 transitions. [2023-12-20 03:38:11,828 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 803 transitions. Word has length 95 [2023-12-20 03:38:11,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:11,828 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 803 transitions. [2023-12-20 03:38:11,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:11,829 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 803 transitions. [2023-12-20 03:38:11,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:38:11,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:11,829 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] [2023-12-20 03:38:11,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-20 03:38:11,830 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:11,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:11,830 INFO L85 PathProgramCache]: Analyzing trace with hash -627921467, now seen corresponding path program 1 times [2023-12-20 03:38:11,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:11,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803771127] [2023-12-20 03:38:11,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:11,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:11,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:11,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:11,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803771127] [2023-12-20 03:38:11,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803771127] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:11,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:11,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:11,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233011139] [2023-12-20 03:38:11,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:11,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:11,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:11,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:11,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:11,981 INFO L87 Difference]: Start difference. First operand 636 states and 803 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:12,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:12,602 INFO L93 Difference]: Finished difference Result 1150 states and 1489 transitions. [2023-12-20 03:38:12,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:12,602 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:38:12,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:12,611 INFO L225 Difference]: With dead ends: 1150 [2023-12-20 03:38:12,611 INFO L226 Difference]: Without dead ends: 1074 [2023-12-20 03:38:12,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:38:12,612 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 3149 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 1898 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3149 SdHoareTripleChecker+Valid, 2550 SdHoareTripleChecker+Invalid, 1902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:12,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3149 Valid, 2550 Invalid, 1902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1898 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:38:12,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2023-12-20 03:38:12,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 636. [2023-12-20 03:38:12,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3061889250814331) internal successors, (802), 635 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:12,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 802 transitions. [2023-12-20 03:38:12,636 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 802 transitions. Word has length 95 [2023-12-20 03:38:12,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:12,637 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 802 transitions. [2023-12-20 03:38:12,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:12,637 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 802 transitions. [2023-12-20 03:38:12,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:38:12,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:12,638 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] [2023-12-20 03:38:12,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-20 03:38:12,638 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:12,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:12,639 INFO L85 PathProgramCache]: Analyzing trace with hash 929425044, now seen corresponding path program 1 times [2023-12-20 03:38:12,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:12,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312786760] [2023-12-20 03:38:12,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:12,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:12,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:12,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:12,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312786760] [2023-12-20 03:38:12,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312786760] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:12,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:12,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:12,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202256064] [2023-12-20 03:38:12,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:12,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:12,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:12,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:12,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:12,770 INFO L87 Difference]: Start difference. First operand 636 states and 802 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:13,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:13,400 INFO L93 Difference]: Finished difference Result 1153 states and 1491 transitions. [2023-12-20 03:38:13,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:13,401 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:38:13,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:13,402 INFO L225 Difference]: With dead ends: 1153 [2023-12-20 03:38:13,402 INFO L226 Difference]: Without dead ends: 1074 [2023-12-20 03:38:13,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:38:13,403 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 3149 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3149 SdHoareTripleChecker+Valid, 2550 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:13,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3149 Valid, 2550 Invalid, 1894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:38:13,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2023-12-20 03:38:13,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 636. [2023-12-20 03:38:13,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3045602605863191) internal successors, (801), 635 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:13,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 801 transitions. [2023-12-20 03:38:13,408 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 801 transitions. Word has length 95 [2023-12-20 03:38:13,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:13,408 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 801 transitions. [2023-12-20 03:38:13,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:13,408 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 801 transitions. [2023-12-20 03:38:13,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:38:13,409 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:13,409 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] [2023-12-20 03:38:13,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-12-20 03:38:13,410 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:13,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:13,412 INFO L85 PathProgramCache]: Analyzing trace with hash -829474067, now seen corresponding path program 1 times [2023-12-20 03:38:13,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:13,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818969259] [2023-12-20 03:38:13,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:13,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:13,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:13,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:13,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818969259] [2023-12-20 03:38:13,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818969259] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:13,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:13,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:13,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133490456] [2023-12-20 03:38:13,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:13,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:13,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:13,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:13,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:13,576 INFO L87 Difference]: Start difference. First operand 636 states and 801 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:14,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:14,291 INFO L93 Difference]: Finished difference Result 1198 states and 1556 transitions. [2023-12-20 03:38:14,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:14,291 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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 [2023-12-20 03:38:14,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:14,293 INFO L225 Difference]: With dead ends: 1198 [2023-12-20 03:38:14,293 INFO L226 Difference]: Without dead ends: 1107 [2023-12-20 03:38:14,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:38:14,294 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 1963 mSDsluCounter, 2308 mSDsCounter, 0 mSdLazyCounter, 2206 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 3065 SdHoareTripleChecker+Invalid, 2210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:14,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1963 Valid, 3065 Invalid, 2210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2206 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:38:14,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2023-12-20 03:38:14,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 636. [2023-12-20 03:38:14,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3029315960912051) internal successors, (800), 635 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:14,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 800 transitions. [2023-12-20 03:38:14,299 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 800 transitions. Word has length 95 [2023-12-20 03:38:14,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:14,299 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 800 transitions. [2023-12-20 03:38:14,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 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) [2023-12-20 03:38:14,299 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 800 transitions. [2023-12-20 03:38:14,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-20 03:38:14,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:14,300 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] [2023-12-20 03:38:14,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-20 03:38:14,301 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:14,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:14,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1380049275, now seen corresponding path program 1 times [2023-12-20 03:38:14,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:14,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694472815] [2023-12-20 03:38:14,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:14,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:14,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:14,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:14,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694472815] [2023-12-20 03:38:14,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694472815] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:14,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:14,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:14,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814708393] [2023-12-20 03:38:14,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:14,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:14,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:14,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:14,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:14,468 INFO L87 Difference]: Start difference. First operand 636 states and 800 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 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) [2023-12-20 03:38:15,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:15,338 INFO L93 Difference]: Finished difference Result 1148 states and 1484 transitions. [2023-12-20 03:38:15,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:15,338 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 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 [2023-12-20 03:38:15,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:15,339 INFO L225 Difference]: With dead ends: 1148 [2023-12-20 03:38:15,339 INFO L226 Difference]: Without dead ends: 1073 [2023-12-20 03:38:15,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:38:15,340 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 3096 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3096 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 1911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:15,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3096 Valid, 2603 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:38:15,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2023-12-20 03:38:15,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 635. [2023-12-20 03:38:15,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.301794453507341) internal successors, (798), 634 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:15,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 798 transitions. [2023-12-20 03:38:15,345 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 798 transitions. Word has length 96 [2023-12-20 03:38:15,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:15,345 INFO L495 AbstractCegarLoop]: Abstraction has 635 states and 798 transitions. [2023-12-20 03:38:15,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 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) [2023-12-20 03:38:15,345 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 798 transitions. [2023-12-20 03:38:15,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-20 03:38:15,346 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:15,346 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] [2023-12-20 03:38:15,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-20 03:38:15,346 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:15,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:15,347 INFO L85 PathProgramCache]: Analyzing trace with hash -37369270, now seen corresponding path program 1 times [2023-12-20 03:38:15,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:15,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757665874] [2023-12-20 03:38:15,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:15,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:15,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:15,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:15,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757665874] [2023-12-20 03:38:15,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757665874] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:15,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:15,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:15,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348763003] [2023-12-20 03:38:15,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:15,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:15,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:15,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:15,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:15,467 INFO L87 Difference]: Start difference. First operand 635 states and 798 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 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) [2023-12-20 03:38:16,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:16,050 INFO L93 Difference]: Finished difference Result 1147 states and 1482 transitions. [2023-12-20 03:38:16,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:16,050 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 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 [2023-12-20 03:38:16,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:16,051 INFO L225 Difference]: With dead ends: 1147 [2023-12-20 03:38:16,051 INFO L226 Difference]: Without dead ends: 1072 [2023-12-20 03:38:16,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:38:16,052 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 3090 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 1899 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3090 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:16,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3090 Valid, 2603 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1899 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:38:16,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2023-12-20 03:38:16,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 634. [2023-12-20 03:38:16,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 612 states have (on average 1.3006535947712419) internal successors, (796), 633 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:16,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 796 transitions. [2023-12-20 03:38:16,057 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 796 transitions. Word has length 96 [2023-12-20 03:38:16,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:16,057 INFO L495 AbstractCegarLoop]: Abstraction has 634 states and 796 transitions. [2023-12-20 03:38:16,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 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) [2023-12-20 03:38:16,057 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 796 transitions. [2023-12-20 03:38:16,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-20 03:38:16,058 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:16,058 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] [2023-12-20 03:38:16,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-12-20 03:38:16,059 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:16,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:16,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1300994831, now seen corresponding path program 1 times [2023-12-20 03:38:16,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:16,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918637597] [2023-12-20 03:38:16,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:16,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:16,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:16,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:16,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918637597] [2023-12-20 03:38:16,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918637597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:16,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:16,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:16,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650882025] [2023-12-20 03:38:16,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:16,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:16,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:16,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:16,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:16,200 INFO L87 Difference]: Start difference. First operand 634 states and 796 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 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) [2023-12-20 03:38:16,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:16,932 INFO L93 Difference]: Finished difference Result 1146 states and 1480 transitions. [2023-12-20 03:38:16,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:16,932 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 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 [2023-12-20 03:38:16,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:16,934 INFO L225 Difference]: With dead ends: 1146 [2023-12-20 03:38:16,934 INFO L226 Difference]: Without dead ends: 1071 [2023-12-20 03:38:16,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:38:16,934 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 2172 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 1891 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 1895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:16,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2172 Valid, 2603 Invalid, 1895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1891 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:38:16,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-20 03:38:16,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 633. [2023-12-20 03:38:16,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 611 states have (on average 1.2995090016366613) internal successors, (794), 632 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:16,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 794 transitions. [2023-12-20 03:38:16,939 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 794 transitions. Word has length 96 [2023-12-20 03:38:16,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:16,940 INFO L495 AbstractCegarLoop]: Abstraction has 633 states and 794 transitions. [2023-12-20 03:38:16,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 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) [2023-12-20 03:38:16,940 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 794 transitions. [2023-12-20 03:38:16,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-20 03:38:16,940 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:16,941 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] [2023-12-20 03:38:16,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-12-20 03:38:16,942 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:16,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:16,942 INFO L85 PathProgramCache]: Analyzing trace with hash -2004007070, now seen corresponding path program 1 times [2023-12-20 03:38:16,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:16,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161134340] [2023-12-20 03:38:16,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:16,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:17,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:17,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:17,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161134340] [2023-12-20 03:38:17,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161134340] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:17,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:17,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:17,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562286647] [2023-12-20 03:38:17,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:17,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:17,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:17,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:17,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:17,089 INFO L87 Difference]: Start difference. First operand 633 states and 794 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 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) [2023-12-20 03:38:17,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:17,917 INFO L93 Difference]: Finished difference Result 1146 states and 1479 transitions. [2023-12-20 03:38:17,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:17,917 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 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 [2023-12-20 03:38:17,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:17,918 INFO L225 Difference]: With dead ends: 1146 [2023-12-20 03:38:17,918 INFO L226 Difference]: Without dead ends: 1071 [2023-12-20 03:38:17,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:38:17,919 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 2171 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 1887 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 1891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:17,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 2603 Invalid, 1891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1887 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:38:17,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-20 03:38:17,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 633. [2023-12-20 03:38:17,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 611 states have (on average 1.297872340425532) internal successors, (793), 632 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:17,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 793 transitions. [2023-12-20 03:38:17,924 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 793 transitions. Word has length 96 [2023-12-20 03:38:17,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:17,924 INFO L495 AbstractCegarLoop]: Abstraction has 633 states and 793 transitions. [2023-12-20 03:38:17,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 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) [2023-12-20 03:38:17,925 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 793 transitions. [2023-12-20 03:38:17,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-20 03:38:17,925 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:17,925 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] [2023-12-20 03:38:17,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-12-20 03:38:17,926 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:17,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:17,926 INFO L85 PathProgramCache]: Analyzing trace with hash -745671778, now seen corresponding path program 1 times [2023-12-20 03:38:17,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:17,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036808071] [2023-12-20 03:38:17,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:17,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:18,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:18,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:18,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036808071] [2023-12-20 03:38:18,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036808071] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:18,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:18,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:18,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855131205] [2023-12-20 03:38:18,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:18,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:18,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:18,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:18,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:18,074 INFO L87 Difference]: Start difference. First operand 633 states and 793 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 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) [2023-12-20 03:38:18,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:18,773 INFO L93 Difference]: Finished difference Result 1183 states and 1534 transitions. [2023-12-20 03:38:18,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:18,774 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 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 [2023-12-20 03:38:18,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:18,775 INFO L225 Difference]: With dead ends: 1183 [2023-12-20 03:38:18,775 INFO L226 Difference]: Without dead ends: 1103 [2023-12-20 03:38:18,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-20 03:38:18,776 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 2931 mSDsluCounter, 2231 mSDsCounter, 0 mSdLazyCounter, 2025 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2931 SdHoareTripleChecker+Valid, 2928 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:18,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2931 Valid, 2928 Invalid, 2029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2025 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:38:18,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2023-12-20 03:38:18,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 633. [2023-12-20 03:38:18,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 611 states have (on average 1.2962356792144025) internal successors, (792), 632 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:18,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 792 transitions. [2023-12-20 03:38:18,781 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 792 transitions. Word has length 96 [2023-12-20 03:38:18,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:18,781 INFO L495 AbstractCegarLoop]: Abstraction has 633 states and 792 transitions. [2023-12-20 03:38:18,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 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) [2023-12-20 03:38:18,781 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 792 transitions. [2023-12-20 03:38:18,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-20 03:38:18,782 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:18,782 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] [2023-12-20 03:38:18,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-12-20 03:38:18,782 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:18,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:18,783 INFO L85 PathProgramCache]: Analyzing trace with hash -2134264197, now seen corresponding path program 1 times [2023-12-20 03:38:18,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:18,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750877677] [2023-12-20 03:38:18,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:18,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:18,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:18,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:18,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750877677] [2023-12-20 03:38:18,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750877677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:18,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:18,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:18,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569383326] [2023-12-20 03:38:18,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:18,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:18,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:18,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:18,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:18,909 INFO L87 Difference]: Start difference. First operand 633 states and 792 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 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) [2023-12-20 03:38:19,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:19,546 INFO L93 Difference]: Finished difference Result 1145 states and 1476 transitions. [2023-12-20 03:38:19,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:19,547 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 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 [2023-12-20 03:38:19,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:19,548 INFO L225 Difference]: With dead ends: 1145 [2023-12-20 03:38:19,548 INFO L226 Difference]: Without dead ends: 1071 [2023-12-20 03:38:19,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:38:19,549 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 2156 mSDsluCounter, 1989 mSDsCounter, 0 mSdLazyCounter, 1891 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2156 SdHoareTripleChecker+Valid, 2623 SdHoareTripleChecker+Invalid, 1895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:19,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2156 Valid, 2623 Invalid, 1895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1891 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:38:19,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-20 03:38:19,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 633. [2023-12-20 03:38:19,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 611 states have (on average 1.2945990180032734) internal successors, (791), 632 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:19,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 791 transitions. [2023-12-20 03:38:19,554 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 791 transitions. Word has length 96 [2023-12-20 03:38:19,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:19,554 INFO L495 AbstractCegarLoop]: Abstraction has 633 states and 791 transitions. [2023-12-20 03:38:19,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 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) [2023-12-20 03:38:19,554 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 791 transitions. [2023-12-20 03:38:19,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:38:19,555 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:19,555 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] [2023-12-20 03:38:19,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-12-20 03:38:19,555 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:19,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:19,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1212843376, now seen corresponding path program 1 times [2023-12-20 03:38:19,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:19,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264076118] [2023-12-20 03:38:19,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:19,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:19,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:19,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:19,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264076118] [2023-12-20 03:38:19,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264076118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:19,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:19,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 03:38:19,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63983811] [2023-12-20 03:38:19,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:19,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 03:38:19,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:19,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 03:38:19,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:38:19,975 INFO L87 Difference]: Start difference. First operand 633 states and 791 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:20,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:20,982 INFO L93 Difference]: Finished difference Result 1343 states and 1764 transitions. [2023-12-20 03:38:20,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:38:20,983 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2023-12-20 03:38:20,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:20,984 INFO L225 Difference]: With dead ends: 1343 [2023-12-20 03:38:20,984 INFO L226 Difference]: Without dead ends: 1253 [2023-12-20 03:38:20,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-20 03:38:20,984 INFO L413 NwaCegarLoop]: 1307 mSDtfsCounter, 3557 mSDsluCounter, 7017 mSDsCounter, 0 mSdLazyCounter, 1705 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3557 SdHoareTripleChecker+Valid, 8324 SdHoareTripleChecker+Invalid, 1705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:20,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3557 Valid, 8324 Invalid, 1705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1705 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:38:20,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2023-12-20 03:38:20,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 617. [2023-12-20 03:38:20,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 597 states have (on average 1.2931323283082077) internal successors, (772), 616 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:20,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 772 transitions. [2023-12-20 03:38:20,989 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 772 transitions. Word has length 97 [2023-12-20 03:38:20,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:20,989 INFO L495 AbstractCegarLoop]: Abstraction has 617 states and 772 transitions. [2023-12-20 03:38:20,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:20,990 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 772 transitions. [2023-12-20 03:38:20,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:38:20,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:20,990 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] [2023-12-20 03:38:20,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-12-20 03:38:20,990 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:20,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:20,991 INFO L85 PathProgramCache]: Analyzing trace with hash 638588087, now seen corresponding path program 1 times [2023-12-20 03:38:20,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:20,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507498837] [2023-12-20 03:38:20,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:20,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:21,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:21,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:21,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507498837] [2023-12-20 03:38:21,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507498837] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:21,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:21,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 03:38:21,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566887831] [2023-12-20 03:38:21,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:21,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 03:38:21,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:21,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 03:38:21,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:38:21,354 INFO L87 Difference]: Start difference. First operand 617 states and 772 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:22,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:22,357 INFO L93 Difference]: Finished difference Result 989 states and 1242 transitions. [2023-12-20 03:38:22,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:38:22,358 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2023-12-20 03:38:22,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:22,359 INFO L225 Difference]: With dead ends: 989 [2023-12-20 03:38:22,359 INFO L226 Difference]: Without dead ends: 911 [2023-12-20 03:38:22,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-20 03:38:22,359 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 3649 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 1651 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3649 SdHoareTripleChecker+Valid, 3230 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:22,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3649 Valid, 3230 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1651 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:38:22,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2023-12-20 03:38:22,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 613. [2023-12-20 03:38:22,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 594 states have (on average 1.2912457912457913) internal successors, (767), 612 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:22,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 767 transitions. [2023-12-20 03:38:22,364 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 767 transitions. Word has length 97 [2023-12-20 03:38:22,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:22,364 INFO L495 AbstractCegarLoop]: Abstraction has 613 states and 767 transitions. [2023-12-20 03:38:22,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:22,364 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 767 transitions. [2023-12-20 03:38:22,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:38:22,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:22,365 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] [2023-12-20 03:38:22,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-12-20 03:38:22,365 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:22,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:22,367 INFO L85 PathProgramCache]: Analyzing trace with hash 827117724, now seen corresponding path program 1 times [2023-12-20 03:38:22,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:22,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072677178] [2023-12-20 03:38:22,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:22,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:22,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:22,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:22,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072677178] [2023-12-20 03:38:22,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072677178] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:22,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:22,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 03:38:22,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935912987] [2023-12-20 03:38:22,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:22,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 03:38:22,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:22,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 03:38:22,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:38:22,713 INFO L87 Difference]: Start difference. First operand 613 states and 767 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:23,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:23,463 INFO L93 Difference]: Finished difference Result 1003 states and 1272 transitions. [2023-12-20 03:38:23,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 03:38:23,463 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2023-12-20 03:38:23,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:23,464 INFO L225 Difference]: With dead ends: 1003 [2023-12-20 03:38:23,464 INFO L226 Difference]: Without dead ends: 918 [2023-12-20 03:38:23,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2023-12-20 03:38:23,469 INFO L413 NwaCegarLoop]: 950 mSDtfsCounter, 3845 mSDsluCounter, 4201 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3845 SdHoareTripleChecker+Valid, 5151 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:23,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3845 Valid, 5151 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:38:23,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2023-12-20 03:38:23,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 602. [2023-12-20 03:38:23,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 584 states have (on average 1.2893835616438356) internal successors, (753), 601 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:23,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 753 transitions. [2023-12-20 03:38:23,474 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 753 transitions. Word has length 97 [2023-12-20 03:38:23,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:23,474 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 753 transitions. [2023-12-20 03:38:23,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:23,474 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 753 transitions. [2023-12-20 03:38:23,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:38:23,475 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:23,476 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] [2023-12-20 03:38:23,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-12-20 03:38:23,476 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:23,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:23,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1773183359, now seen corresponding path program 1 times [2023-12-20 03:38:23,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:23,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989382814] [2023-12-20 03:38:23,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:23,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:23,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:23,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:23,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:23,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989382814] [2023-12-20 03:38:23,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989382814] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:23,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:23,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 03:38:23,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874621640] [2023-12-20 03:38:23,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:23,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 03:38:23,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:23,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 03:38:23,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:38:23,944 INFO L87 Difference]: Start difference. First operand 602 states and 753 transitions. Second operand has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:24,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:24,685 INFO L93 Difference]: Finished difference Result 1859 states and 2478 transitions. [2023-12-20 03:38:24,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 03:38:24,685 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2023-12-20 03:38:24,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:24,687 INFO L225 Difference]: With dead ends: 1859 [2023-12-20 03:38:24,687 INFO L226 Difference]: Without dead ends: 1722 [2023-12-20 03:38:24,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:38:24,688 INFO L413 NwaCegarLoop]: 1725 mSDtfsCounter, 4594 mSDsluCounter, 9882 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4594 SdHoareTripleChecker+Valid, 11607 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:24,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4594 Valid, 11607 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:38:24,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2023-12-20 03:38:24,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 539. [2023-12-20 03:38:24,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 525 states have (on average 1.2857142857142858) internal successors, (675), 538 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:24,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 675 transitions. [2023-12-20 03:38:24,695 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 675 transitions. Word has length 97 [2023-12-20 03:38:24,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:24,695 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 675 transitions. [2023-12-20 03:38:24,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:24,695 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 675 transitions. [2023-12-20 03:38:24,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:38:24,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:24,696 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] [2023-12-20 03:38:24,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2023-12-20 03:38:24,696 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:24,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:24,696 INFO L85 PathProgramCache]: Analyzing trace with hash -133396310, now seen corresponding path program 1 times [2023-12-20 03:38:24,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:24,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976679897] [2023-12-20 03:38:24,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:24,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:25,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:25,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:25,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976679897] [2023-12-20 03:38:25,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976679897] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:25,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:25,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 03:38:25,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987926548] [2023-12-20 03:38:25,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:25,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 03:38:25,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:25,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 03:38:25,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:38:25,118 INFO L87 Difference]: Start difference. First operand 539 states and 675 transitions. Second operand has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:25,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:25,954 INFO L93 Difference]: Finished difference Result 1569 states and 2124 transitions. [2023-12-20 03:38:25,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 03:38:25,955 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2023-12-20 03:38:25,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:25,956 INFO L225 Difference]: With dead ends: 1569 [2023-12-20 03:38:25,956 INFO L226 Difference]: Without dead ends: 1378 [2023-12-20 03:38:25,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:38:25,957 INFO L413 NwaCegarLoop]: 1233 mSDtfsCounter, 3660 mSDsluCounter, 6791 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3660 SdHoareTripleChecker+Valid, 8024 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:25,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3660 Valid, 8024 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 03:38:25,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2023-12-20 03:38:25,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 422. [2023-12-20 03:38:25,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 413 states have (on average 1.2857142857142858) internal successors, (531), 421 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:25,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 531 transitions. [2023-12-20 03:38:25,962 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 531 transitions. Word has length 97 [2023-12-20 03:38:25,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:25,962 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 531 transitions. [2023-12-20 03:38:25,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:25,962 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 531 transitions. [2023-12-20 03:38:25,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:38:25,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:25,963 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] [2023-12-20 03:38:25,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2023-12-20 03:38:25,963 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:25,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:25,963 INFO L85 PathProgramCache]: Analyzing trace with hash 185756887, now seen corresponding path program 1 times [2023-12-20 03:38:25,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:25,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083615055] [2023-12-20 03:38:25,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:25,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:26,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:26,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:26,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083615055] [2023-12-20 03:38:26,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083615055] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:26,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:26,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 03:38:26,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561769000] [2023-12-20 03:38:26,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:26,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 03:38:26,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:26,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 03:38:26,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:38:26,327 INFO L87 Difference]: Start difference. First operand 422 states and 531 transitions. Second operand has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:26,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:26,978 INFO L93 Difference]: Finished difference Result 1452 states and 1979 transitions. [2023-12-20 03:38:26,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 03:38:26,978 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2023-12-20 03:38:26,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:26,980 INFO L225 Difference]: With dead ends: 1452 [2023-12-20 03:38:26,980 INFO L226 Difference]: Without dead ends: 1284 [2023-12-20 03:38:26,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2023-12-20 03:38:26,981 INFO L413 NwaCegarLoop]: 810 mSDtfsCounter, 3460 mSDsluCounter, 5993 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3460 SdHoareTripleChecker+Valid, 6803 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:26,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3460 Valid, 6803 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:38:26,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2023-12-20 03:38:26,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 328. [2023-12-20 03:38:26,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 320 states have (on average 1.271875) internal successors, (407), 327 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:26,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 407 transitions. [2023-12-20 03:38:26,985 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 407 transitions. Word has length 97 [2023-12-20 03:38:26,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:26,985 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 407 transitions. [2023-12-20 03:38:26,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:26,985 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 407 transitions. [2023-12-20 03:38:26,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:38:26,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:26,986 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] [2023-12-20 03:38:26,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2023-12-20 03:38:26,986 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:26,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:26,986 INFO L85 PathProgramCache]: Analyzing trace with hash 851261447, now seen corresponding path program 1 times [2023-12-20 03:38:26,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:26,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640435726] [2023-12-20 03:38:26,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:26,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:27,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:27,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:27,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640435726] [2023-12-20 03:38:27,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640435726] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:27,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:27,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 03:38:27,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344406107] [2023-12-20 03:38:27,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:27,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 03:38:27,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:27,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 03:38:27,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:38:27,289 INFO L87 Difference]: Start difference. First operand 328 states and 407 transitions. Second operand has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:27,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:27,957 INFO L93 Difference]: Finished difference Result 1422 states and 1930 transitions. [2023-12-20 03:38:27,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 03:38:27,958 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2023-12-20 03:38:27,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:27,959 INFO L225 Difference]: With dead ends: 1422 [2023-12-20 03:38:27,959 INFO L226 Difference]: Without dead ends: 1300 [2023-12-20 03:38:27,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:38:27,960 INFO L413 NwaCegarLoop]: 1020 mSDtfsCounter, 2663 mSDsluCounter, 7516 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2663 SdHoareTripleChecker+Valid, 8536 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:27,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2663 Valid, 8536 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:38:27,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2023-12-20 03:38:27,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 280. [2023-12-20 03:38:27,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 273 states have (on average 1.26007326007326) internal successors, (344), 279 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:27,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 344 transitions. [2023-12-20 03:38:27,964 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 344 transitions. Word has length 97 [2023-12-20 03:38:27,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:27,965 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 344 transitions. [2023-12-20 03:38:27,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:27,965 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 344 transitions. [2023-12-20 03:38:27,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:38:27,965 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:27,965 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] [2023-12-20 03:38:27,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2023-12-20 03:38:27,965 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:27,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:27,966 INFO L85 PathProgramCache]: Analyzing trace with hash -485476544, now seen corresponding path program 1 times [2023-12-20 03:38:27,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:27,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142059437] [2023-12-20 03:38:27,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:27,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:28,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:28,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:28,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142059437] [2023-12-20 03:38:28,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142059437] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:28,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:28,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-20 03:38:28,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472206065] [2023-12-20 03:38:28,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:28,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-20 03:38:28,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:28,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-20 03:38:28,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-12-20 03:38:28,433 INFO L87 Difference]: Start difference. First operand 280 states and 344 transitions. Second operand has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 14 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:29,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:29,221 INFO L93 Difference]: Finished difference Result 894 states and 1197 transitions. [2023-12-20 03:38:29,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 03:38:29,221 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 14 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2023-12-20 03:38:29,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:29,222 INFO L225 Difference]: With dead ends: 894 [2023-12-20 03:38:29,222 INFO L226 Difference]: Without dead ends: 749 [2023-12-20 03:38:29,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:38:29,223 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 4023 mSDsluCounter, 3481 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4023 SdHoareTripleChecker+Valid, 4010 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:29,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4023 Valid, 4010 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 03:38:29,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2023-12-20 03:38:29,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 280. [2023-12-20 03:38:29,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 273 states have (on average 1.2564102564102564) internal successors, (343), 279 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:29,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 343 transitions. [2023-12-20 03:38:29,226 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 343 transitions. Word has length 97 [2023-12-20 03:38:29,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:29,226 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 343 transitions. [2023-12-20 03:38:29,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 14 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:29,226 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 343 transitions. [2023-12-20 03:38:29,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:38:29,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:29,226 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] [2023-12-20 03:38:29,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2023-12-20 03:38:29,227 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:29,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:29,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1851448540, now seen corresponding path program 1 times [2023-12-20 03:38:29,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:29,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113402750] [2023-12-20 03:38:29,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:29,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:29,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:29,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:29,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113402750] [2023-12-20 03:38:29,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113402750] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:29,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:29,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:29,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130199517] [2023-12-20 03:38:29,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:29,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:29,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:29,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:29,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:29,365 INFO L87 Difference]: Start difference. First operand 280 states and 343 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 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) [2023-12-20 03:38:29,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:29,900 INFO L93 Difference]: Finished difference Result 658 states and 877 transitions. [2023-12-20 03:38:29,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:38:29,900 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 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 [2023-12-20 03:38:29,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:29,901 INFO L225 Difference]: With dead ends: 658 [2023-12-20 03:38:29,901 INFO L226 Difference]: Without dead ends: 566 [2023-12-20 03:38:29,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:38:29,902 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 1406 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:29,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 1418 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1012 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 03:38:29,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-12-20 03:38:29,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 280. [2023-12-20 03:38:29,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 273 states have (on average 1.2527472527472527) internal successors, (342), 279 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:29,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 342 transitions. [2023-12-20 03:38:29,904 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 342 transitions. Word has length 98 [2023-12-20 03:38:29,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:29,905 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 342 transitions. [2023-12-20 03:38:29,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 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) [2023-12-20 03:38:29,905 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 342 transitions. [2023-12-20 03:38:29,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:38:29,905 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:29,905 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] [2023-12-20 03:38:29,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2023-12-20 03:38:29,905 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:29,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:29,906 INFO L85 PathProgramCache]: Analyzing trace with hash -89068196, now seen corresponding path program 1 times [2023-12-20 03:38:29,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:29,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782588370] [2023-12-20 03:38:29,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:29,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:30,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:30,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:30,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782588370] [2023-12-20 03:38:30,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782588370] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:30,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:30,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:38:30,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893467084] [2023-12-20 03:38:30,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:30,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:30,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:30,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:30,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:30,038 INFO L87 Difference]: Start difference. First operand 280 states and 342 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 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) [2023-12-20 03:38:30,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:30,453 INFO L93 Difference]: Finished difference Result 427 states and 531 transitions. [2023-12-20 03:38:30,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 03:38:30,453 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 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 [2023-12-20 03:38:30,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:30,453 INFO L225 Difference]: With dead ends: 427 [2023-12-20 03:38:30,454 INFO L226 Difference]: Without dead ends: 420 [2023-12-20 03:38:30,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-12-20 03:38:30,454 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 763 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:30,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 1189 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:38:30,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2023-12-20 03:38:30,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 280. [2023-12-20 03:38:30,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 273 states have (on average 1.249084249084249) internal successors, (341), 279 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:30,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 341 transitions. [2023-12-20 03:38:30,462 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 341 transitions. Word has length 98 [2023-12-20 03:38:30,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:30,462 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 341 transitions. [2023-12-20 03:38:30,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 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) [2023-12-20 03:38:30,462 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 341 transitions. [2023-12-20 03:38:30,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:38:30,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:30,462 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] [2023-12-20 03:38:30,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2023-12-20 03:38:30,462 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:30,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:30,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1164287464, now seen corresponding path program 1 times [2023-12-20 03:38:30,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:30,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814652753] [2023-12-20 03:38:30,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:30,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:31,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:31,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:31,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814652753] [2023-12-20 03:38:31,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814652753] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:31,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:31,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-20 03:38:31,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761783893] [2023-12-20 03:38:31,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:31,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-20 03:38:31,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:31,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-20 03:38:31,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:38:31,056 INFO L87 Difference]: Start difference. First operand 280 states and 341 transitions. Second operand has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 16 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) [2023-12-20 03:38:32,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:32,235 INFO L93 Difference]: Finished difference Result 907 states and 1213 transitions. [2023-12-20 03:38:32,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-20 03:38:32,235 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 16 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 [2023-12-20 03:38:32,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:32,236 INFO L225 Difference]: With dead ends: 907 [2023-12-20 03:38:32,236 INFO L226 Difference]: Without dead ends: 813 [2023-12-20 03:38:32,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=275, Invalid=985, Unknown=0, NotChecked=0, Total=1260 [2023-12-20 03:38:32,237 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 2623 mSDsluCounter, 4676 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2623 SdHoareTripleChecker+Valid, 5412 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:32,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2623 Valid, 5412 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:38:32,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2023-12-20 03:38:32,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 273. [2023-12-20 03:38:32,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 266 states have (on average 1.2406015037593985) internal successors, (330), 272 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:32,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 330 transitions. [2023-12-20 03:38:32,240 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 330 transitions. Word has length 98 [2023-12-20 03:38:32,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:32,240 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 330 transitions. [2023-12-20 03:38:32,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 16 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) [2023-12-20 03:38:32,240 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 330 transitions. [2023-12-20 03:38:32,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:38:32,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:32,241 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] [2023-12-20 03:38:32,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2023-12-20 03:38:32,241 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:32,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:32,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1551319760, now seen corresponding path program 1 times [2023-12-20 03:38:32,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:32,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135779702] [2023-12-20 03:38:32,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:32,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:32,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:32,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:32,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135779702] [2023-12-20 03:38:32,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135779702] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:32,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:32,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-20 03:38:32,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490376794] [2023-12-20 03:38:32,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:32,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 03:38:32,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:32,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 03:38:32,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-20 03:38:32,550 INFO L87 Difference]: Start difference. First operand 273 states and 330 transitions. Second operand has 10 states, 10 states have (on average 9.8) internal successors, (98), 9 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) [2023-12-20 03:38:32,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:32,861 INFO L93 Difference]: Finished difference Result 660 states and 867 transitions. [2023-12-20 03:38:32,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 03:38:32,861 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 9 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 [2023-12-20 03:38:32,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:32,862 INFO L225 Difference]: With dead ends: 660 [2023-12-20 03:38:32,862 INFO L226 Difference]: Without dead ends: 518 [2023-12-20 03:38:32,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2023-12-20 03:38:32,862 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 1615 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:32,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1615 Valid, 1529 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:38:32,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2023-12-20 03:38:32,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 205. [2023-12-20 03:38:32,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 202 states have (on average 1.2376237623762376) internal successors, (250), 204 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:32,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 250 transitions. [2023-12-20 03:38:32,864 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 250 transitions. Word has length 98 [2023-12-20 03:38:32,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:32,865 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 250 transitions. [2023-12-20 03:38:32,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 9 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) [2023-12-20 03:38:32,865 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 250 transitions. [2023-12-20 03:38:32,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 03:38:32,865 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:32,865 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, 1] [2023-12-20 03:38:32,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2023-12-20 03:38:32,865 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:32,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:32,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1289791201, now seen corresponding path program 1 times [2023-12-20 03:38:32,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:32,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060938574] [2023-12-20 03:38:32,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:32,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:34,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:34,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:34,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060938574] [2023-12-20 03:38:34,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060938574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:34,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:34,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2023-12-20 03:38:34,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430059291] [2023-12-20 03:38:34,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:34,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-20 03:38:34,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:34,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-20 03:38:34,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=978, Unknown=0, NotChecked=0, Total=1056 [2023-12-20 03:38:34,516 INFO L87 Difference]: Start difference. First operand 205 states and 250 transitions. Second operand has 33 states, 33 states have (on average 3.0303030303030303) internal successors, (100), 32 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:40,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:40,692 INFO L93 Difference]: Finished difference Result 1089 states and 1453 transitions. [2023-12-20 03:38:40,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-20 03:38:40,692 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.0303030303030303) internal successors, (100), 32 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2023-12-20 03:38:40,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:40,693 INFO L225 Difference]: With dead ends: 1089 [2023-12-20 03:38:40,693 INFO L226 Difference]: Without dead ends: 1083 [2023-12-20 03:38:40,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=474, Invalid=3066, Unknown=0, NotChecked=0, Total=3540 [2023-12-20 03:38:40,694 INFO L413 NwaCegarLoop]: 909 mSDtfsCounter, 3240 mSDsluCounter, 17360 mSDsCounter, 0 mSdLazyCounter, 9122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3240 SdHoareTripleChecker+Valid, 18269 SdHoareTripleChecker+Invalid, 9122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:40,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3240 Valid, 18269 Invalid, 9122 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 9122 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-20 03:38:40,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-20 03:38:40,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 231. [2023-12-20 03:38:40,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 228 states have (on average 1.236842105263158) internal successors, (282), 230 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:40,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 282 transitions. [2023-12-20 03:38:40,697 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 282 transitions. Word has length 100 [2023-12-20 03:38:40,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:40,697 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 282 transitions. [2023-12-20 03:38:40,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.0303030303030303) internal successors, (100), 32 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:40,697 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 282 transitions. [2023-12-20 03:38:40,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 03:38:40,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:40,698 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, 1, 1, 1, 1, 1] [2023-12-20 03:38:40,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2023-12-20 03:38:40,698 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:40,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:40,698 INFO L85 PathProgramCache]: Analyzing trace with hash -641588265, now seen corresponding path program 1 times [2023-12-20 03:38:40,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:40,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384475621] [2023-12-20 03:38:40,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:40,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:41,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:41,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:41,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384475621] [2023-12-20 03:38:41,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384475621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:41,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:41,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2023-12-20 03:38:41,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39007770] [2023-12-20 03:38:41,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:41,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-20 03:38:41,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:41,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-20 03:38:41,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=864, Unknown=0, NotChecked=0, Total=930 [2023-12-20 03:38:41,933 INFO L87 Difference]: Start difference. First operand 231 states and 282 transitions. Second operand has 31 states, 31 states have (on average 3.225806451612903) internal successors, (100), 31 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:45,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:45,924 INFO L93 Difference]: Finished difference Result 945 states and 1237 transitions. [2023-12-20 03:38:45,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-20 03:38:45,924 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.225806451612903) internal successors, (100), 31 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2023-12-20 03:38:45,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:45,925 INFO L225 Difference]: With dead ends: 945 [2023-12-20 03:38:45,925 INFO L226 Difference]: Without dead ends: 937 [2023-12-20 03:38:45,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=429, Invalid=2763, Unknown=0, NotChecked=0, Total=3192 [2023-12-20 03:38:45,926 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 2603 mSDsluCounter, 14787 mSDsCounter, 0 mSdLazyCounter, 7799 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2603 SdHoareTripleChecker+Valid, 15639 SdHoareTripleChecker+Invalid, 7800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:45,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2603 Valid, 15639 Invalid, 7800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7799 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-20 03:38:45,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2023-12-20 03:38:45,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 240. [2023-12-20 03:38:45,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 237 states have (on average 1.2362869198312236) internal successors, (293), 239 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:45,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 293 transitions. [2023-12-20 03:38:45,929 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 293 transitions. Word has length 100 [2023-12-20 03:38:45,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:45,929 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 293 transitions. [2023-12-20 03:38:45,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.225806451612903) internal successors, (100), 31 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:45,929 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 293 transitions. [2023-12-20 03:38:45,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 03:38:45,929 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:45,930 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, 1, 1] [2023-12-20 03:38:45,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2023-12-20 03:38:45,930 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:45,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:45,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1441605077, now seen corresponding path program 1 times [2023-12-20 03:38:45,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:45,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557369828] [2023-12-20 03:38:45,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:45,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:46,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:46,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:46,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557369828] [2023-12-20 03:38:46,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557369828] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:46,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:46,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 03:38:46,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885715961] [2023-12-20 03:38:46,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:46,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 03:38:46,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:46,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 03:38:46,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:38:46,257 INFO L87 Difference]: Start difference. First operand 240 states and 293 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:46,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:46,721 INFO L93 Difference]: Finished difference Result 503 states and 667 transitions. [2023-12-20 03:38:46,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:38:46,722 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2023-12-20 03:38:46,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:46,722 INFO L225 Difference]: With dead ends: 503 [2023-12-20 03:38:46,723 INFO L226 Difference]: Without dead ends: 497 [2023-12-20 03:38:46,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-20 03:38:46,723 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 1130 mSDsluCounter, 2170 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 2708 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:46,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 2708 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:38:46,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-12-20 03:38:46,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 223. [2023-12-20 03:38:46,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 221 states have (on average 1.2352941176470589) internal successors, (273), 222 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) [2023-12-20 03:38:46,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 273 transitions. [2023-12-20 03:38:46,725 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 273 transitions. Word has length 101 [2023-12-20 03:38:46,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:46,726 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 273 transitions. [2023-12-20 03:38:46,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:46,726 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 273 transitions. [2023-12-20 03:38:46,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 03:38:46,726 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:46,726 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, 1, 1] [2023-12-20 03:38:46,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2023-12-20 03:38:46,726 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:46,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:46,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1305938980, now seen corresponding path program 1 times [2023-12-20 03:38:46,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:46,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607787520] [2023-12-20 03:38:46,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:46,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:47,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:47,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:47,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607787520] [2023-12-20 03:38:47,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607787520] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:47,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:47,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-20 03:38:47,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104405236] [2023-12-20 03:38:47,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:47,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-20 03:38:47,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:47,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-20 03:38:47,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:38:47,325 INFO L87 Difference]: Start difference. First operand 223 states and 273 transitions. Second operand has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 16 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:48,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:48,322 INFO L93 Difference]: Finished difference Result 450 states and 581 transitions. [2023-12-20 03:38:48,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-20 03:38:48,322 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 16 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2023-12-20 03:38:48,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:48,323 INFO L225 Difference]: With dead ends: 450 [2023-12-20 03:38:48,323 INFO L226 Difference]: Without dead ends: 431 [2023-12-20 03:38:48,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=263, Invalid=927, Unknown=0, NotChecked=0, Total=1190 [2023-12-20 03:38:48,324 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 1279 mSDsluCounter, 3113 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 3562 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:48,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 3562 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 03:38:48,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-12-20 03:38:48,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 199. [2023-12-20 03:38:48,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 197 states have (on average 1.233502538071066) internal successors, (243), 198 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:48,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 243 transitions. [2023-12-20 03:38:48,326 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 243 transitions. Word has length 101 [2023-12-20 03:38:48,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:48,326 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 243 transitions. [2023-12-20 03:38:48,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 16 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:48,326 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 243 transitions. [2023-12-20 03:38:48,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 03:38:48,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:48,326 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, 1, 1] [2023-12-20 03:38:48,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2023-12-20 03:38:48,326 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:48,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:48,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1215233727, now seen corresponding path program 1 times [2023-12-20 03:38:48,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:48,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079988923] [2023-12-20 03:38:48,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:48,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:48,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:48,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:48,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079988923] [2023-12-20 03:38:48,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079988923] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:48,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:48,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-20 03:38:48,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805584084] [2023-12-20 03:38:48,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:48,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-20 03:38:48,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:48,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-20 03:38:48,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2023-12-20 03:38:48,833 INFO L87 Difference]: Start difference. First operand 199 states and 243 transitions. Second operand has 16 states, 16 states have (on average 6.3125) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:49,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:49,501 INFO L93 Difference]: Finished difference Result 397 states and 521 transitions. [2023-12-20 03:38:49,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-20 03:38:49,502 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.3125) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2023-12-20 03:38:49,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:49,502 INFO L225 Difference]: With dead ends: 397 [2023-12-20 03:38:49,502 INFO L226 Difference]: Without dead ends: 376 [2023-12-20 03:38:49,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=249, Invalid=873, Unknown=0, NotChecked=0, Total=1122 [2023-12-20 03:38:49,503 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 1225 mSDsluCounter, 2817 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 3223 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:49,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 3223 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:38:49,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2023-12-20 03:38:49,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 181. [2023-12-20 03:38:49,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.2444444444444445) internal successors, (224), 180 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:49,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 224 transitions. [2023-12-20 03:38:49,505 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 224 transitions. Word has length 101 [2023-12-20 03:38:49,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:49,505 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 224 transitions. [2023-12-20 03:38:49,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.3125) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:49,505 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 224 transitions. [2023-12-20 03:38:49,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-20 03:38:49,505 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:49,506 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:38:49,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2023-12-20 03:38:49,506 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:49,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:49,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1950077852, now seen corresponding path program 1 times [2023-12-20 03:38:49,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:49,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011046773] [2023-12-20 03:38:49,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:49,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:49,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:49,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011046773] [2023-12-20 03:38:49,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011046773] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:49,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:49,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:38:49,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664641661] [2023-12-20 03:38:49,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:49,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:49,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:49,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:49,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:49,608 INFO L87 Difference]: Start difference. First operand 181 states and 224 transitions. Second operand has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:49,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:49,760 INFO L93 Difference]: Finished difference Result 1069 states and 1544 transitions. [2023-12-20 03:38:49,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 03:38:49,761 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 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 [2023-12-20 03:38:49,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:49,762 INFO L225 Difference]: With dead ends: 1069 [2023-12-20 03:38:49,762 INFO L226 Difference]: Without dead ends: 995 [2023-12-20 03:38:49,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2023-12-20 03:38:49,762 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 2283 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:49,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2283 Valid, 1861 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:38:49,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2023-12-20 03:38:49,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 253. [2023-12-20 03:38:49,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 252 states have (on average 1.3134920634920635) internal successors, (331), 252 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:49,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 331 transitions. [2023-12-20 03:38:49,767 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 331 transitions. Word has length 131 [2023-12-20 03:38:49,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:49,767 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 331 transitions. [2023-12-20 03:38:49,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:49,767 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 331 transitions. [2023-12-20 03:38:49,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-20 03:38:49,768 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:49,768 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:38:49,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2023-12-20 03:38:49,768 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:49,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:49,768 INFO L85 PathProgramCache]: Analyzing trace with hash 589201307, now seen corresponding path program 1 times [2023-12-20 03:38:49,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:49,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267623766] [2023-12-20 03:38:49,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:49,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:49,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:49,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:49,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267623766] [2023-12-20 03:38:49,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267623766] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:49,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:49,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:38:49,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439957134] [2023-12-20 03:38:49,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:49,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:49,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:49,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:49,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:49,880 INFO L87 Difference]: Start difference. First operand 253 states and 331 transitions. Second operand has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:49,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:49,969 INFO L93 Difference]: Finished difference Result 1203 states and 1741 transitions. [2023-12-20 03:38:49,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:38:49,970 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2023-12-20 03:38:49,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:49,971 INFO L225 Difference]: With dead ends: 1203 [2023-12-20 03:38:49,971 INFO L226 Difference]: Without dead ends: 1057 [2023-12-20 03:38:49,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:38:49,971 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 1885 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1885 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:49,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1885 Valid, 1224 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:38:49,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2023-12-20 03:38:49,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 397. [2023-12-20 03:38:49,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 396 states have (on average 1.378787878787879) internal successors, (546), 396 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:49,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 546 transitions. [2023-12-20 03:38:49,979 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 546 transitions. Word has length 133 [2023-12-20 03:38:49,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:49,979 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 546 transitions. [2023-12-20 03:38:49,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:49,979 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 546 transitions. [2023-12-20 03:38:49,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-20 03:38:49,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:49,981 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:38:49,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2023-12-20 03:38:49,981 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:49,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:49,981 INFO L85 PathProgramCache]: Analyzing trace with hash 298389588, now seen corresponding path program 1 times [2023-12-20 03:38:49,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:49,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814408319] [2023-12-20 03:38:49,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:49,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:50,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:50,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:50,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814408319] [2023-12-20 03:38:50,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814408319] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:50,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:50,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:38:50,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379129370] [2023-12-20 03:38:50,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:50,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:38:50,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:50,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:38:50,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:38:50,029 INFO L87 Difference]: Start difference. First operand 397 states and 546 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:50,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:50,048 INFO L93 Difference]: Finished difference Result 951 states and 1364 transitions. [2023-12-20 03:38:50,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:38:50,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2023-12-20 03:38:50,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:50,049 INFO L225 Difference]: With dead ends: 951 [2023-12-20 03:38:50,049 INFO L226 Difference]: Without dead ends: 661 [2023-12-20 03:38:50,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:38:50,050 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 133 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:50,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 359 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:38:50,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2023-12-20 03:38:50,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 655. [2023-12-20 03:38:50,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 654 states have (on average 1.4021406727828747) internal successors, (917), 654 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:50,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 917 transitions. [2023-12-20 03:38:50,055 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 917 transitions. Word has length 133 [2023-12-20 03:38:50,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:50,055 INFO L495 AbstractCegarLoop]: Abstraction has 655 states and 917 transitions. [2023-12-20 03:38:50,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:50,055 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 917 transitions. [2023-12-20 03:38:50,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-20 03:38:50,056 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:50,056 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:38:50,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2023-12-20 03:38:50,056 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:50,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:50,056 INFO L85 PathProgramCache]: Analyzing trace with hash 364883100, now seen corresponding path program 1 times [2023-12-20 03:38:50,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:50,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111894485] [2023-12-20 03:38:50,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:50,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:50,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:50,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:50,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111894485] [2023-12-20 03:38:50,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111894485] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:50,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:50,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:38:50,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961574062] [2023-12-20 03:38:50,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:50,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:38:50,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:50,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:38:50,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:38:50,127 INFO L87 Difference]: Start difference. First operand 655 states and 917 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:50,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:50,150 INFO L93 Difference]: Finished difference Result 1205 states and 1721 transitions. [2023-12-20 03:38:50,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:38:50,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2023-12-20 03:38:50,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:50,151 INFO L225 Difference]: With dead ends: 1205 [2023-12-20 03:38:50,151 INFO L226 Difference]: Without dead ends: 657 [2023-12-20 03:38:50,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:38:50,152 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 87 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:50,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 376 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:38:50,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2023-12-20 03:38:50,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 655. [2023-12-20 03:38:50,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 654 states have (on average 1.3990825688073394) internal successors, (915), 654 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:50,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 915 transitions. [2023-12-20 03:38:50,157 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 915 transitions. Word has length 133 [2023-12-20 03:38:50,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:50,157 INFO L495 AbstractCegarLoop]: Abstraction has 655 states and 915 transitions. [2023-12-20 03:38:50,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:50,157 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 915 transitions. [2023-12-20 03:38:50,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-20 03:38:50,158 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:50,158 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:38:50,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2023-12-20 03:38:50,158 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:50,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:50,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1650033765, now seen corresponding path program 1 times [2023-12-20 03:38:50,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:50,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967398691] [2023-12-20 03:38:50,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:50,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:50,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:50,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:50,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967398691] [2023-12-20 03:38:50,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967398691] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:50,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:50,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:38:50,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7915565] [2023-12-20 03:38:50,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:50,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:50,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:50,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:50,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:50,272 INFO L87 Difference]: Start difference. First operand 655 states and 915 transitions. Second operand has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:50,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:50,375 INFO L93 Difference]: Finished difference Result 2444 states and 3527 transitions. [2023-12-20 03:38:50,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:38:50,375 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2023-12-20 03:38:50,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:50,377 INFO L225 Difference]: With dead ends: 2444 [2023-12-20 03:38:50,377 INFO L226 Difference]: Without dead ends: 2169 [2023-12-20 03:38:50,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:38:50,382 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 1752 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1752 SdHoareTripleChecker+Valid, 1301 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:50,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1752 Valid, 1301 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:38:50,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2169 states. [2023-12-20 03:38:50,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2169 to 1065. [2023-12-20 03:38:50,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 1064 states have (on average 1.4219924812030076) internal successors, (1513), 1064 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:50,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1513 transitions. [2023-12-20 03:38:50,392 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1513 transitions. Word has length 133 [2023-12-20 03:38:50,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:50,392 INFO L495 AbstractCegarLoop]: Abstraction has 1065 states and 1513 transitions. [2023-12-20 03:38:50,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:50,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1513 transitions. [2023-12-20 03:38:50,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-20 03:38:50,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:50,393 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:38:50,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2023-12-20 03:38:50,393 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:50,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:50,394 INFO L85 PathProgramCache]: Analyzing trace with hash 225115547, now seen corresponding path program 1 times [2023-12-20 03:38:50,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:50,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041330366] [2023-12-20 03:38:50,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:50,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:50,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:50,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:50,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041330366] [2023-12-20 03:38:50,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041330366] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:50,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:50,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:38:50,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403948863] [2023-12-20 03:38:50,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:50,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:50,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:50,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:50,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:50,499 INFO L87 Difference]: Start difference. First operand 1065 states and 1513 transitions. Second operand has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:50,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:50,605 INFO L93 Difference]: Finished difference Result 2717 states and 3926 transitions. [2023-12-20 03:38:50,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:38:50,606 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2023-12-20 03:38:50,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:50,608 INFO L225 Difference]: With dead ends: 2717 [2023-12-20 03:38:50,608 INFO L226 Difference]: Without dead ends: 2442 [2023-12-20 03:38:50,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:38:50,608 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 1605 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1605 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:50,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1605 Valid, 1417 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:38:50,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2023-12-20 03:38:50,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 1338. [2023-12-20 03:38:50,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1337 states have (on average 1.4300673148840688) internal successors, (1912), 1337 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:50,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1912 transitions. [2023-12-20 03:38:50,620 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1912 transitions. Word has length 133 [2023-12-20 03:38:50,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:50,620 INFO L495 AbstractCegarLoop]: Abstraction has 1338 states and 1912 transitions. [2023-12-20 03:38:50,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:50,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1912 transitions. [2023-12-20 03:38:50,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-20 03:38:50,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:50,621 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:38:50,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2023-12-20 03:38:50,621 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:50,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:50,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1329660315, now seen corresponding path program 1 times [2023-12-20 03:38:50,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:50,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902667786] [2023-12-20 03:38:50,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:50,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:50,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:50,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:50,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902667786] [2023-12-20 03:38:50,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902667786] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:50,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:50,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:38:50,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25798361] [2023-12-20 03:38:50,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:50,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:50,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:50,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:50,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:50,734 INFO L87 Difference]: Start difference. First operand 1338 states and 1912 transitions. Second operand has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:50,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:50,843 INFO L93 Difference]: Finished difference Result 2990 states and 4325 transitions. [2023-12-20 03:38:50,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:38:50,844 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2023-12-20 03:38:50,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:50,846 INFO L225 Difference]: With dead ends: 2990 [2023-12-20 03:38:50,846 INFO L226 Difference]: Without dead ends: 2715 [2023-12-20 03:38:50,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:38:50,847 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 1559 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:50,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1559 Valid, 1540 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:38:50,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states. [2023-12-20 03:38:50,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 1611. [2023-12-20 03:38:50,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1611 states, 1610 states have (on average 1.4354037267080746) internal successors, (2311), 1610 states have internal predecessors, (2311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:50,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 2311 transitions. [2023-12-20 03:38:50,860 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 2311 transitions. Word has length 133 [2023-12-20 03:38:50,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:50,860 INFO L495 AbstractCegarLoop]: Abstraction has 1611 states and 2311 transitions. [2023-12-20 03:38:50,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:50,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 2311 transitions. [2023-12-20 03:38:50,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-20 03:38:50,861 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:50,861 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:38:50,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2023-12-20 03:38:50,861 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:50,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:50,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1034779749, now seen corresponding path program 1 times [2023-12-20 03:38:50,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:50,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919559395] [2023-12-20 03:38:50,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:50,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:50,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:50,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:50,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919559395] [2023-12-20 03:38:50,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919559395] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:50,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:50,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:38:50,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808161210] [2023-12-20 03:38:50,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:50,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:50,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:50,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:50,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:50,966 INFO L87 Difference]: Start difference. First operand 1611 states and 2311 transitions. Second operand has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:51,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:51,078 INFO L93 Difference]: Finished difference Result 3263 states and 4724 transitions. [2023-12-20 03:38:51,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:38:51,079 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2023-12-20 03:38:51,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:51,081 INFO L225 Difference]: With dead ends: 3263 [2023-12-20 03:38:51,081 INFO L226 Difference]: Without dead ends: 2988 [2023-12-20 03:38:51,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:38:51,082 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 1611 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1611 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:51,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1611 Valid, 1547 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:38:51,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2023-12-20 03:38:51,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 1884. [2023-12-20 03:38:51,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1884 states, 1883 states have (on average 1.4391927774827402) internal successors, (2710), 1883 states have internal predecessors, (2710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:51,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2710 transitions. [2023-12-20 03:38:51,097 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2710 transitions. Word has length 133 [2023-12-20 03:38:51,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:51,097 INFO L495 AbstractCegarLoop]: Abstraction has 1884 states and 2710 transitions. [2023-12-20 03:38:51,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:51,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2710 transitions. [2023-12-20 03:38:51,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-20 03:38:51,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:51,098 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:38:51,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2023-12-20 03:38:51,098 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:51,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:51,099 INFO L85 PathProgramCache]: Analyzing trace with hash -2024555311, now seen corresponding path program 1 times [2023-12-20 03:38:51,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:51,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898188070] [2023-12-20 03:38:51,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:51,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:51,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:51,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:51,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898188070] [2023-12-20 03:38:51,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898188070] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:51,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:51,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:38:51,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688035187] [2023-12-20 03:38:51,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:51,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:38:51,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:51,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:38:51,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:38:51,182 INFO L87 Difference]: Start difference. First operand 1884 states and 2710 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:51,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:51,200 INFO L93 Difference]: Finished difference Result 5334 states and 7720 transitions. [2023-12-20 03:38:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:38:51,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2023-12-20 03:38:51,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:51,203 INFO L225 Difference]: With dead ends: 5334 [2023-12-20 03:38:51,203 INFO L226 Difference]: Without dead ends: 3557 [2023-12-20 03:38:51,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:38:51,204 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 106 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:51,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 479 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:38:51,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3557 states. [2023-12-20 03:38:51,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3557 to 3451. [2023-12-20 03:38:51,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3451 states, 3450 states have (on average 1.4397101449275362) internal successors, (4967), 3450 states have internal predecessors, (4967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:51,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3451 states to 3451 states and 4967 transitions. [2023-12-20 03:38:51,226 INFO L78 Accepts]: Start accepts. Automaton has 3451 states and 4967 transitions. Word has length 134 [2023-12-20 03:38:51,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:51,227 INFO L495 AbstractCegarLoop]: Abstraction has 3451 states and 4967 transitions. [2023-12-20 03:38:51,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:51,227 INFO L276 IsEmpty]: Start isEmpty. Operand 3451 states and 4967 transitions. [2023-12-20 03:38:51,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-20 03:38:51,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:51,228 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:38:51,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2023-12-20 03:38:51,228 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:51,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:51,228 INFO L85 PathProgramCache]: Analyzing trace with hash -2043104582, now seen corresponding path program 1 times [2023-12-20 03:38:51,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:51,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432954263] [2023-12-20 03:38:51,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:51,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:51,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:51,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:51,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432954263] [2023-12-20 03:38:51,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432954263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:51,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:51,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:38:51,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682722580] [2023-12-20 03:38:51,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:51,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:38:51,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:51,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:38:51,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:38:51,301 INFO L87 Difference]: Start difference. First operand 3451 states and 4967 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:51,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:51,324 INFO L93 Difference]: Finished difference Result 9931 states and 14309 transitions. [2023-12-20 03:38:51,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:38:51,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2023-12-20 03:38:51,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:51,329 INFO L225 Difference]: With dead ends: 9931 [2023-12-20 03:38:51,329 INFO L226 Difference]: Without dead ends: 6587 [2023-12-20 03:38:51,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:38:51,332 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 99 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:51,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 479 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:38:51,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6587 states. [2023-12-20 03:38:51,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6587 to 6377. [2023-12-20 03:38:51,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6377 states, 6376 states have (on average 1.4339711417816814) internal successors, (9143), 6376 states have internal predecessors, (9143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:51,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6377 states to 6377 states and 9143 transitions. [2023-12-20 03:38:51,379 INFO L78 Accepts]: Start accepts. Automaton has 6377 states and 9143 transitions. Word has length 135 [2023-12-20 03:38:51,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:51,379 INFO L495 AbstractCegarLoop]: Abstraction has 6377 states and 9143 transitions. [2023-12-20 03:38:51,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:51,379 INFO L276 IsEmpty]: Start isEmpty. Operand 6377 states and 9143 transitions. [2023-12-20 03:38:51,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-20 03:38:51,380 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:51,380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:38:51,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2023-12-20 03:38:51,380 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:51,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:51,380 INFO L85 PathProgramCache]: Analyzing trace with hash 99854877, now seen corresponding path program 1 times [2023-12-20 03:38:51,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:51,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426568385] [2023-12-20 03:38:51,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:51,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:51,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:51,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:51,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426568385] [2023-12-20 03:38:51,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426568385] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:51,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:51,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:38:51,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571011990] [2023-12-20 03:38:51,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:51,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:38:51,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:51,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:38:51,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:38:51,454 INFO L87 Difference]: Start difference. First operand 6377 states and 9143 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:51,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:51,489 INFO L93 Difference]: Finished difference Result 18501 states and 26473 transitions. [2023-12-20 03:38:51,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:38:51,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2023-12-20 03:38:51,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:51,499 INFO L225 Difference]: With dead ends: 18501 [2023-12-20 03:38:51,499 INFO L226 Difference]: Without dead ends: 12231 [2023-12-20 03:38:51,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:38:51,506 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 92 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:51,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 479 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:38:51,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12231 states. [2023-12-20 03:38:51,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12231 to 11813. [2023-12-20 03:38:51,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11813 states, 11812 states have (on average 1.4238909583474433) internal successors, (16819), 11812 states have internal predecessors, (16819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:51,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11813 states to 11813 states and 16819 transitions. [2023-12-20 03:38:51,601 INFO L78 Accepts]: Start accepts. Automaton has 11813 states and 16819 transitions. Word has length 136 [2023-12-20 03:38:51,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:51,601 INFO L495 AbstractCegarLoop]: Abstraction has 11813 states and 16819 transitions. [2023-12-20 03:38:51,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:51,601 INFO L276 IsEmpty]: Start isEmpty. Operand 11813 states and 16819 transitions. [2023-12-20 03:38:51,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-20 03:38:51,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:51,602 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:38:51,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2023-12-20 03:38:51,602 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:51,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:51,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1658258758, now seen corresponding path program 1 times [2023-12-20 03:38:51,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:51,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401573474] [2023-12-20 03:38:51,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:51,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:51,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:51,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:51,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401573474] [2023-12-20 03:38:51,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401573474] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:51,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:51,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:38:51,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679100664] [2023-12-20 03:38:51,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:51,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:38:51,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:51,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:38:51,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:38:51,704 INFO L87 Difference]: Start difference. First operand 11813 states and 16819 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:51,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:51,764 INFO L93 Difference]: Finished difference Result 34393 states and 48773 transitions. [2023-12-20 03:38:51,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:38:51,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2023-12-20 03:38:51,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:51,784 INFO L225 Difference]: With dead ends: 34393 [2023-12-20 03:38:51,784 INFO L226 Difference]: Without dead ends: 22687 [2023-12-20 03:38:51,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:38:51,797 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 85 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:51,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 479 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:38:51,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22687 states. [2023-12-20 03:38:51,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22687 to 21853. [2023-12-20 03:38:51,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21853 states, 21852 states have (on average 1.4103514552443712) internal successors, (30819), 21852 states have internal predecessors, (30819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:51,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21853 states to 21853 states and 30819 transitions. [2023-12-20 03:38:51,983 INFO L78 Accepts]: Start accepts. Automaton has 21853 states and 30819 transitions. Word has length 137 [2023-12-20 03:38:51,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:51,983 INFO L495 AbstractCegarLoop]: Abstraction has 21853 states and 30819 transitions. [2023-12-20 03:38:51,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:51,984 INFO L276 IsEmpty]: Start isEmpty. Operand 21853 states and 30819 transitions. [2023-12-20 03:38:51,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-20 03:38:51,984 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:51,984 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:38:51,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2023-12-20 03:38:51,984 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:51,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:51,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1811436695, now seen corresponding path program 1 times [2023-12-20 03:38:51,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:51,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048181439] [2023-12-20 03:38:51,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:51,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:52,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:52,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:52,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048181439] [2023-12-20 03:38:52,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048181439] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:52,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:52,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:38:52,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539153389] [2023-12-20 03:38:52,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:52,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:38:52,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:52,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:38:52,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:38:52,057 INFO L87 Difference]: Start difference. First operand 21853 states and 30819 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:52,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:52,173 INFO L93 Difference]: Finished difference Result 63681 states and 89317 transitions. [2023-12-20 03:38:52,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:38:52,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2023-12-20 03:38:52,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:52,212 INFO L225 Difference]: With dead ends: 63681 [2023-12-20 03:38:52,212 INFO L226 Difference]: Without dead ends: 41935 [2023-12-20 03:38:52,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:38:52,237 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 75 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:52,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 479 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:38:52,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41935 states. [2023-12-20 03:38:52,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41935 to 40269. [2023-12-20 03:38:52,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40269 states, 40268 states have (on average 1.3935382934339922) internal successors, (56115), 40268 states have internal predecessors, (56115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:52,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40269 states to 40269 states and 56115 transitions. [2023-12-20 03:38:52,639 INFO L78 Accepts]: Start accepts. Automaton has 40269 states and 56115 transitions. Word has length 138 [2023-12-20 03:38:52,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:52,639 INFO L495 AbstractCegarLoop]: Abstraction has 40269 states and 56115 transitions. [2023-12-20 03:38:52,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:52,639 INFO L276 IsEmpty]: Start isEmpty. Operand 40269 states and 56115 transitions. [2023-12-20 03:38:52,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-20 03:38:52,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:52,640 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:38:52,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2023-12-20 03:38:52,640 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:52,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:52,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1839766482, now seen corresponding path program 1 times [2023-12-20 03:38:52,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:52,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675558305] [2023-12-20 03:38:52,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:52,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:53,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:53,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:53,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675558305] [2023-12-20 03:38:53,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675558305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:53,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:53,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:38:53,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041231039] [2023-12-20 03:38:53,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:53,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 03:38:53,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:53,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 03:38:53,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:38:53,024 INFO L87 Difference]: Start difference. First operand 40269 states and 56115 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:53,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:53,210 INFO L93 Difference]: Finished difference Result 70897 states and 98241 transitions. [2023-12-20 03:38:53,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 03:38:53,210 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2023-12-20 03:38:53,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:53,285 INFO L225 Difference]: With dead ends: 70897 [2023-12-20 03:38:53,285 INFO L226 Difference]: Without dead ends: 70895 [2023-12-20 03:38:53,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-20 03:38:53,307 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 361 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:53,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 1179 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:38:53,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70895 states. [2023-12-20 03:38:53,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70895 to 41421. [2023-12-20 03:38:53,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41421 states, 41420 states have (on average 1.3771849348140994) internal successors, (57043), 41420 states have internal predecessors, (57043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:53,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41421 states to 41421 states and 57043 transitions. [2023-12-20 03:38:53,824 INFO L78 Accepts]: Start accepts. Automaton has 41421 states and 57043 transitions. Word has length 139 [2023-12-20 03:38:53,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:53,824 INFO L495 AbstractCegarLoop]: Abstraction has 41421 states and 57043 transitions. [2023-12-20 03:38:53,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:53,825 INFO L276 IsEmpty]: Start isEmpty. Operand 41421 states and 57043 transitions. [2023-12-20 03:38:53,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-20 03:38:53,825 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:53,825 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:38:53,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2023-12-20 03:38:53,825 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:53,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:53,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1251069372, now seen corresponding path program 1 times [2023-12-20 03:38:53,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:53,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036948382] [2023-12-20 03:38:53,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:53,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:53,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:53,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:53,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036948382] [2023-12-20 03:38:53,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036948382] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:53,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:53,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:38:53,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326679146] [2023-12-20 03:38:53,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:53,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:38:53,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:53,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:38:53,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:38:53,938 INFO L87 Difference]: Start difference. First operand 41421 states and 57043 transitions. Second operand has 8 states, 8 states have (on average 17.375) internal successors, (139), 8 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:54,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:54,415 INFO L93 Difference]: Finished difference Result 79643 states and 110042 transitions. [2023-12-20 03:38:54,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:38:54,415 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.375) internal successors, (139), 8 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2023-12-20 03:38:54,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:54,507 INFO L225 Difference]: With dead ends: 79643 [2023-12-20 03:38:54,507 INFO L226 Difference]: Without dead ends: 73273 [2023-12-20 03:38:54,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:38:54,531 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 1630 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1630 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:54,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1630 Valid, 1365 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:38:54,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73273 states. [2023-12-20 03:38:55,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73273 to 47789. [2023-12-20 03:38:55,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47789 states, 47788 states have (on average 1.3771448899305265) internal successors, (65811), 47788 states have internal predecessors, (65811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:55,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47789 states to 47789 states and 65811 transitions. [2023-12-20 03:38:55,297 INFO L78 Accepts]: Start accepts. Automaton has 47789 states and 65811 transitions. Word has length 139 [2023-12-20 03:38:55,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:55,297 INFO L495 AbstractCegarLoop]: Abstraction has 47789 states and 65811 transitions. [2023-12-20 03:38:55,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.375) internal successors, (139), 8 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:55,297 INFO L276 IsEmpty]: Start isEmpty. Operand 47789 states and 65811 transitions. [2023-12-20 03:38:55,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 03:38:55,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:55,298 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:38:55,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2023-12-20 03:38:55,298 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:55,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:55,298 INFO L85 PathProgramCache]: Analyzing trace with hash -2055138183, now seen corresponding path program 1 times [2023-12-20 03:38:55,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:55,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767720146] [2023-12-20 03:38:55,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:55,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:55,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:55,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:55,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767720146] [2023-12-20 03:38:55,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767720146] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:55,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:55,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:38:55,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581733112] [2023-12-20 03:38:55,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:55,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:38:55,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:55,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:38:55,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:38:55,371 INFO L87 Difference]: Start difference. First operand 47789 states and 65811 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:55,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:55,724 INFO L93 Difference]: Finished difference Result 123473 states and 169573 transitions. [2023-12-20 03:38:55,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:38:55,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2023-12-20 03:38:55,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:55,813 INFO L225 Difference]: With dead ends: 123473 [2023-12-20 03:38:55,813 INFO L226 Difference]: Without dead ends: 75791 [2023-12-20 03:38:55,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:38:55,855 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 110 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:38:55,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 482 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:38:56,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75791 states. [2023-12-20 03:38:56,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75791 to 71949. [2023-12-20 03:38:56,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71949 states, 71948 states have (on average 1.3636932228831935) internal successors, (98115), 71948 states have internal predecessors, (98115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:56,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71949 states to 71949 states and 98115 transitions. [2023-12-20 03:38:56,867 INFO L78 Accepts]: Start accepts. Automaton has 71949 states and 98115 transitions. Word has length 140 [2023-12-20 03:38:56,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:56,867 INFO L495 AbstractCegarLoop]: Abstraction has 71949 states and 98115 transitions. [2023-12-20 03:38:56,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:56,867 INFO L276 IsEmpty]: Start isEmpty. Operand 71949 states and 98115 transitions. [2023-12-20 03:38:56,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-20 03:38:56,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:56,875 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:38:56,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2023-12-20 03:38:56,876 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:56,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:56,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1066962696, now seen corresponding path program 1 times [2023-12-20 03:38:56,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:56,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314598143] [2023-12-20 03:38:56,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:56,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:57,068 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:57,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:57,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314598143] [2023-12-20 03:38:57,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314598143] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:38:57,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:38:57,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:38:57,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256096796] [2023-12-20 03:38:57,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:38:57,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:38:57,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:38:57,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:38:57,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:38:57,070 INFO L87 Difference]: Start difference. First operand 71949 states and 98115 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:57,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:38:57,416 INFO L93 Difference]: Finished difference Result 143793 states and 196117 transitions. [2023-12-20 03:38:57,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:38:57,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2023-12-20 03:38:57,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:38:57,485 INFO L225 Difference]: With dead ends: 143793 [2023-12-20 03:38:57,486 INFO L226 Difference]: Without dead ends: 71951 [2023-12-20 03:38:57,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:38:57,516 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 94 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 450 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 [2023-12-20 03:38:57,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 450 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:38:57,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71951 states. [2023-12-20 03:38:58,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71951 to 71949. [2023-12-20 03:38:58,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71949 states, 71948 states have (on average 1.3503502529604714) internal successors, (97155), 71948 states have internal predecessors, (97155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:58,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71949 states to 71949 states and 97155 transitions. [2023-12-20 03:38:58,477 INFO L78 Accepts]: Start accepts. Automaton has 71949 states and 97155 transitions. Word has length 174 [2023-12-20 03:38:58,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:38:58,477 INFO L495 AbstractCegarLoop]: Abstraction has 71949 states and 97155 transitions. [2023-12-20 03:38:58,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:38:58,477 INFO L276 IsEmpty]: Start isEmpty. Operand 71949 states and 97155 transitions. [2023-12-20 03:38:58,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-20 03:38:58,481 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:38:58,482 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:38:58,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2023-12-20 03:38:58,482 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:38:58,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:38:58,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1111852659, now seen corresponding path program 1 times [2023-12-20 03:38:58,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:38:58,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197863154] [2023-12-20 03:38:58,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:58,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:38:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:58,913 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:58,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:38:58,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197863154] [2023-12-20 03:38:58,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197863154] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:38:58,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609568078] [2023-12-20 03:38:58,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:38:58,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:38:58,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:38:58,916 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:38:58,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 03:38:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:38:59,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-20 03:38:59,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:38:59,966 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:38:59,967 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:39:01,050 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:39:01,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609568078] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:39:01,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:39:01,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 28 [2023-12-20 03:39:01,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541404380] [2023-12-20 03:39:01,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:39:01,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-20 03:39:01,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:39:01,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-20 03:39:01,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=720, Unknown=0, NotChecked=0, Total=812 [2023-12-20 03:39:01,055 INFO L87 Difference]: Start difference. First operand 71949 states and 97155 transitions. Second operand has 29 states, 29 states have (on average 16.20689655172414) internal successors, (470), 28 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:39:54,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:39:54,152 INFO L93 Difference]: Finished difference Result 2170438 states and 2890222 transitions. [2023-12-20 03:39:54,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 713 states. [2023-12-20 03:39:54,153 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 16.20689655172414) internal successors, (470), 28 states have internal predecessors, (470), 0 states have call successors, (0), 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 174 [2023-12-20 03:39:54,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:39:58,497 INFO L225 Difference]: With dead ends: 2170438 [2023-12-20 03:39:58,497 INFO L226 Difference]: Without dead ends: 2098596 [2023-12-20 03:39:59,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1068 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 738 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253985 ImplicationChecksByTransitivity, 41.7s TimeCoverageRelationStatistics Valid=51744, Invalid=495116, Unknown=0, NotChecked=0, Total=546860 [2023-12-20 03:39:59,196 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 32432 mSDsluCounter, 5252 mSDsCounter, 0 mSdLazyCounter, 6717 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32432 SdHoareTripleChecker+Valid, 5672 SdHoareTripleChecker+Invalid, 6858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 6717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:39:59,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32432 Valid, 5672 Invalid, 6858 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [141 Valid, 6717 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-20 03:40:00,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098596 states. [2023-12-20 03:40:13,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098596 to 354976. [2023-12-20 03:40:13,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354976 states, 354975 states have (on average 1.340105641242341) internal successors, (475704), 354975 states have internal predecessors, (475704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:40:14,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354976 states to 354976 states and 475704 transitions. [2023-12-20 03:40:14,368 INFO L78 Accepts]: Start accepts. Automaton has 354976 states and 475704 transitions. Word has length 174 [2023-12-20 03:40:14,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:40:14,369 INFO L495 AbstractCegarLoop]: Abstraction has 354976 states and 475704 transitions. [2023-12-20 03:40:14,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 16.20689655172414) internal successors, (470), 28 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:40:14,369 INFO L276 IsEmpty]: Start isEmpty. Operand 354976 states and 475704 transitions. [2023-12-20 03:40:14,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-20 03:40:14,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:40:14,383 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:40:14,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-20 03:40:14,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2023-12-20 03:40:14,591 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-12-20 03:40:14,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:40:14,591 INFO L85 PathProgramCache]: Analyzing trace with hash 414698421, now seen corresponding path program 1 times [2023-12-20 03:40:14,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:40:14,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906149016] [2023-12-20 03:40:14,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:40:14,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:40:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:40:15,220 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:40:15,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:40:15,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906149016] [2023-12-20 03:40:15,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906149016] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:40:15,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289506639] [2023-12-20 03:40:15,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:40:15,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:40:15,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:40:15,222 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:40:15,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 03:40:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:40:15,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-20 03:40:15,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:40:16,203 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:40:16,203 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:40:17,030 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:40:17,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289506639] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:40:17,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:40:17,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 27 [2023-12-20 03:40:17,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745876785] [2023-12-20 03:40:17,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:40:17,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-20 03:40:17,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:40:17,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-20 03:40:17,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=630, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:40:17,034 INFO L87 Difference]: Start difference. First operand 354976 states and 475704 transitions. Second operand has 27 states, 27 states have (on average 17.296296296296298) internal successors, (467), 27 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:40:54,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:40:54,800 INFO L93 Difference]: Finished difference Result 3810172 states and 5051553 transitions. [2023-12-20 03:40:54,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 486 states. [2023-12-20 03:40:54,801 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 17.296296296296298) internal successors, (467), 27 states have internal predecessors, (467), 0 states have call successors, (0), 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 175 [2023-12-20 03:40:54,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:41:01,965 INFO L225 Difference]: With dead ends: 3810172 [2023-12-20 03:41:01,965 INFO L226 Difference]: Without dead ends: 3455390 [2023-12-20 03:41:03,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 842 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 509 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121550 ImplicationChecksByTransitivity, 22.4s TimeCoverageRelationStatistics Valid=29705, Invalid=230905, Unknown=0, NotChecked=0, Total=260610 [2023-12-20 03:41:03,041 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 27179 mSDsluCounter, 8084 mSDsCounter, 0 mSdLazyCounter, 7095 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27179 SdHoareTripleChecker+Valid, 8673 SdHoareTripleChecker+Invalid, 7247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 7095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:41:03,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27179 Valid, 8673 Invalid, 7247 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [152 Valid, 7095 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-20 03:41:05,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3455390 states.